2.0 8v MP9 Revs not picking up
- blou_poot
- Cadet
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- Car Make: VW
- Car Model: Chico golf 1.3+Vat
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2.0 8v MP9 Revs not picking up
Hi All,
I have tried searching on the forum and the web for an answer but unable to find the correct one.
Few weeks back i went racing on our local track in Namibia.
At about the 3rd run the car just died at launch. Restart the car and starts fine on the key.
But as soon as you give it gas it feels like the car "pulls timing" or "rev limiting" at +-1000 RPM.
the car does not pick up revs at all. Sometimes it would run fine if you give it slight throttle, but this is an art. The car came alive while driving with the "miss" and at about 2000RPM it was happy and suddenly all was well. Seems it might have gone into limp mode or similar.
hope the above makes sense as i usually write the way i think.
What i have done:
* Scanned with VCDS no errors
* TB adaptation
* Fitted new plugs (bosch WD6 i believe i usually run the NGK Bpr6es -zn )
* Rechecked timing
* Tested spark
* tested fuelling
* replaced Fuel relay
To Do today:
* double check dizzy rotor might be 180 deg out - However not sure how this could happen as i was racing with it.
* Source dizzy and Coil and test one by one.
* Change map sensor if i can find my spare
* Change Water Temp Sender.
The problem is the car starts first time and idles fine, as soon as you throttle it it seems as if it splutters.
I have tried searching on the forum and the web for an answer but unable to find the correct one.
Few weeks back i went racing on our local track in Namibia.
At about the 3rd run the car just died at launch. Restart the car and starts fine on the key.
But as soon as you give it gas it feels like the car "pulls timing" or "rev limiting" at +-1000 RPM.
the car does not pick up revs at all. Sometimes it would run fine if you give it slight throttle, but this is an art. The car came alive while driving with the "miss" and at about 2000RPM it was happy and suddenly all was well. Seems it might have gone into limp mode or similar.
hope the above makes sense as i usually write the way i think.
What i have done:
* Scanned with VCDS no errors
* TB adaptation
* Fitted new plugs (bosch WD6 i believe i usually run the NGK Bpr6es -zn )
* Rechecked timing
* Tested spark
* tested fuelling
* replaced Fuel relay
To Do today:
* double check dizzy rotor might be 180 deg out - However not sure how this could happen as i was racing with it.
* Source dizzy and Coil and test one by one.
* Change map sensor if i can find my spare
* Change Water Temp Sender.
The problem is the car starts first time and idles fine, as soon as you throttle it it seems as if it splutters.
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
- panic-mechanic
- Panic's Place
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- Location: Benoni, putfontein.
Re: 2.0 8v MP9 Revs not picking up
Check the fuel rail. They break inside. Bam , no pressure.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- blou_poot
- Cadet
- Posts: 352
- Registered for: 9 years 11 months
- Car Make: VW
- Car Model: Chico golf 1.3+Vat
- Location: Windhoek
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Re: 2.0 8v MP9 Revs not picking up
Hi Panic,
thanks for the feedback.
Please advise if the car would intermittently work fine if the fuel rail is broken, should this not be a case of the car not running well the whole time?
Will fit aftermarket FPR to check, please advise if we need to remove old/OEM FPR or should this be fine?
thanks for the feedback.
Please advise if the car would intermittently work fine if the fuel rail is broken, should this not be a case of the car not running well the whole time?
Will fit aftermarket FPR to check, please advise if we need to remove old/OEM FPR or should this be fine?
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: 2.0 8v MP9 Revs not picking up
Take a screwdriver or a long nose plier in your leading hand. Walk to the car, open the bonnet. Look for the fuel pressure regulator.
Use the screwdriver or plier and pull the circlip that holds the FRP in place out.
Now pull the fpr. If it is broken the centre pipe will come out. If not it is not broken.
Use the screwdriver or plier and pull the circlip that holds the FRP in place out.
Now pull the fpr. If it is broken the centre pipe will come out. If not it is not broken.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- blou_poot
- Cadet
- Posts: 352
- Registered for: 9 years 11 months
- Car Make: VW
- Car Model: Chico golf 1.3+Vat
- Location: Windhoek
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Re: 2.0 8v MP9 Revs not picking up
Thanks panic.
Will do so tonight.
Will be providing feedback.
Sent from my HUAWEI VNS-L21 using Tapatalk
Will do so tonight.
Will be providing feedback.
Sent from my HUAWEI VNS-L21 using Tapatalk
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
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- Colonel
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- Location: Durban
Re: 2.0 8v MP9 Revs not picking up
could also be cracked and hence you loosing fuel pressure, try clamping/crimping the return line and see if it helps.
Golf I 1800i mp9 viewtopic.php?f=11&t=50981&p=1469997#p1469997
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
- blou_poot
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- Posts: 352
- Registered for: 9 years 11 months
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Re: 2.0 8v MP9 Revs not picking up
Hi UDC,
Not sure if I am losing fuel pressure.
last time i crimped the return the motor died/wanted to die... but will definitely have a look.
Not sure if I am losing fuel pressure.
last time i crimped the return the motor died/wanted to die... but will definitely have a look.
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
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- Colonel
- Posts: 5738
- Registered for: 17 years 2 months
- Membership No: 1041
- Location: Durban
Re: 2.0 8v MP9 Revs not picking up
fit fuel pressure gauge and check, must have a steady 3bar pressure for mp9
Golf I 1800i mp9 viewtopic.php?f=11&t=50981&p=1469997#p1469997
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
- blou_poot
- Cadet
- Posts: 352
- Registered for: 9 years 11 months
- Car Make: VW
- Car Model: Chico golf 1.3+Vat
- Location: Windhoek
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Re: 2.0 8v MP9 Revs not picking up
Noted. I only have a aftermarket FPR.
Will fit and see, just hate the damn thing because it makes the car run funny... Probably due to me never fitting a vacuum hose.
Sent from my HUAWEI VNS-L21 using Tapatalk
Will fit and see, just hate the damn thing because it makes the car run funny... Probably due to me never fitting a vacuum hose.
Sent from my HUAWEI VNS-L21 using Tapatalk
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
- blou_poot
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- Posts: 352
- Registered for: 9 years 11 months
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- Car Model: Chico golf 1.3+Vat
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Re: 2.0 8v MP9 Revs not picking up
Defintely fuel pressure related.
Plugged on the FPR to test... Seems it starts running at 2 bar... Ran pump straight from battery with the same issue so cant be the relay?
This is a bosch fuel pump, can i just clean it as it has the mesh on the inlet side? Or is the pump messed up?
I have been running through pumps past two years, is this because of the fi petrol tank? Or would something else be killing pumps?
Sent from my HUAWEI VNS-L21 using Tapatalk
Plugged on the FPR to test... Seems it starts running at 2 bar... Ran pump straight from battery with the same issue so cant be the relay?
This is a bosch fuel pump, can i just clean it as it has the mesh on the inlet side? Or is the pump messed up?
I have been running through pumps past two years, is this because of the fi petrol tank? Or would something else be killing pumps?
Sent from my HUAWEI VNS-L21 using Tapatalk
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: 2.0 8v MP9 Revs not picking up
Put an inline filter before the pump. It is dirt that kills it.
You running straiht petrol? Not some funky mix of chemicals with it?
You running straiht petrol? Not some funky mix of chemicals with it?
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- blou_poot
- Cadet
- Posts: 352
- Registered for: 9 years 11 months
- Car Make: VW
- Car Model: Chico golf 1.3+Vat
- Location: Windhoek
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Re: 2.0 8v MP9 Revs not picking up
Thanks panic,
Will source a filter once i have money for the new pump. These 044 bosch pumps dont come cheap here in namibia. Perhaps our petrol is messed up.
While busy trying to find a solution does anyone know what might have worked for this person: http://www.vwclub.co.za/forum/viewtopic.php?t=203980
Seems hes problem is sorted and seems similar.
The pump runs fine until you hear the pump straining, and thats when fp drops?
Sent from my HUAWEI VNS-L21 using Tapatalk
Will source a filter once i have money for the new pump. These 044 bosch pumps dont come cheap here in namibia. Perhaps our petrol is messed up.
While busy trying to find a solution does anyone know what might have worked for this person: http://www.vwclub.co.za/forum/viewtopic.php?t=203980
Seems hes problem is sorted and seems similar.
The pump runs fine until you hear the pump straining, and thats when fp drops?
Sent from my HUAWEI VNS-L21 using Tapatalk
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
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- Car Make: 1.9tdi sportline 9n3
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Re: 2.0 8v MP9 Revs not picking up
Hey guys, sorry to hijack this post. I recently removed dictator from my mk3 Cli and went mp9. My car is having a similar issue. Starts up and idles 100% but doesn't Rev. I have 2.0 map loaded on the ecu, very neat and well done harness, fuel pressure seems fine as car revs isn't jumping and it's quite consistant throigjout the idle. My problem is, she ain't revving up for ****. I suspect map sensor? Anywhere else I can scratch? Thanks guys
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Re: 2.0 8v MP9 Revs not picking up
Might I add, car is at a friend of mine now and he is always working on mp9 cars so he took the 1800mp9 box from his dad's car and plugged it into mine, same thing, no revving, idles but doesn't Rev. So that tells me that the box is fine, but something somewhere is not giving a signal.
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- Colonel
- Posts: 5738
- Registered for: 17 years 2 months
- Membership No: 1041
- Location: Durban
Re: 2.0 8v MP9 Revs not picking up
Try unplugging the map sensor and see if it revs up, if not then test fuel pressure and supply to the rail, pressure needs to be 3bar
Golf I 1800i mp9 viewtopic.php?f=11&t=50981&p=1469997#p1469997
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
- blou_poot
- Cadet
- Posts: 352
- Registered for: 9 years 11 months
- Car Make: VW
- Car Model: Chico golf 1.3+Vat
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Re: 2.0 8v MP9 Revs not picking up
Crimp the return line on the fuel rail... If it revs up it would be the fpr/fuel rail that's stuffed... Swop out for new one and you should be good to go... Any pump noise?
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
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Re: 2.0 8v MP9 Revs not picking up
Okay guys so update, I tried what yol said here to no avail. So I'm going to try be a bit more specific. Car idles fine, 100%. But as soon as I Rev the car, it's as if it smothers and wants to die. Just bear in mind, this car had no previous issues before the conversion besides idle issues due to the dictator always messing with that. Something tells me the injectors aren't getting propper signal, maybe we should have a look at this harness again to make sure everything is 100%. What can I check for?
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- Colonel
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Re: 2.0 8v MP9 Revs not picking up
did you run diagnostics and see what codes come up, check fuel pressure to see what the pump is providing
Golf I 1800i mp9 viewtopic.php?f=11&t=50981&p=1469997#p1469997
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
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Re: 2.0 8v MP9 Revs not picking up
Sooo I was right, it was the harness. I bought the harness from a guy that said it came directly off mk3 jetta. So I assumed everything was there but I missed the relay and fuse. Attached that and car is starting fine now and revving up. Yerrr, mp9 sounds and idle's beautifully compared to digifant on dictator. Fully recommend this rather than dictator for a standard motor.
- blou_poot
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Re: 2.0 8v MP9 Revs not picking up
Yip mp9 for a standard motor is nice. But dicktator is great especially if you have the right tuner. Or the right guys to assist.
96' Chico 2.0 Carb
Win or lose, the War is not over.
Win or lose, the War is not over.
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Re: 2.0 8v MP9 Revs not picking up
Dictator isn't the best down here in PE. I suppose inland maybe yes. I always had to take the car for a tune if I do the slightest change. I had a good tuner, probably one of the best, Nazeem from nisma performance. But sad I'm going to have reduced power now, we managed to fish out 91kw on the stock 8v motor. I'm assuming I will only get around 88kw now. Also going for tune everytime isn't cheap. It's fine if you a racer and prepared to spend the money.
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Re: 2.0 8v MP9 Revs not picking up
Hey guys, me again, so driving the car now for few weeks with the mp9 set up, runs awesome. However, apparently the cold start on these things are supposed to be pretty great, however, mine doesn't kick in until I'm actually out the yard and driving to the first stop street lol. When I get there and stop, then it idles over 1k revs as cold start should then levels out late to 900-950 which is 100's. However, if I'm in the yard on first start, it starts up but cold start doesn't kick in immediately,it idles at 850-900 then maxes out at 900. Maybe water temp sensor or anything else to look at? Shot guys, any feedback is appreciated
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- Colonel
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Re: 2.0 8v MP9 Revs not picking up
Most likely the water temp sensor as that tells the Ecu if motor is cold and to compensate the fueling accordingly
Golf I 1800i mp9 viewtopic.php?f=11&t=50981&p=1469997#p1469997
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
Golf II Gti 1.8 16V mp9 viewtopic.php?f=11&t=61202&p=1820503#p1820503
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Re: 2.0 8v MP9 Revs not picking up
Okay thanks UDC will change that out. I'm using the green/yellowish one by Hella at the moment. Any recommendations or should I just pick up the same one? Because the guy at midas told me last time that they sell many of those with no issue. There was a more exoensive one but not sure of the name, I think FAE.
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Re: 2.0 8v MP9 Revs not picking up
What relay and fuse are u talking about.