Help please_MP9 error, and heavy on juice

[Scatman]

Hi guys, after changing back to the 1.4i motor, I drove the car to Roodepoort to gave my uncle flash the ECU for the 1.4 map. The car got 8km/l before the flash (i.e. running on the 2.0 map).

I filled up the car after I got back home from Roodepoort. I have now done about 175km, and the tank is between 1/2 and 3/4

I used to drive about 180km before the needle started dropping! Titliest (Guillaume) scanned my car for errors (thanks meneer ), and it showed this the first time:

Thursday,19,July,2012,17:07:42:15002
VCDS Version: Release 11.11.3
Data version: 20120401



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 17 - VW Golf Citi
Scan: 01 09 15 17 25 56

Mileage: 230500km/143226miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Part No: 6KS 906 258 k
Component: 1.4 MP9.0 26ZA0003
Shop #: 2227355880
VCID: 7DF7403977EA4F1

8 Faults Found:
00537 - Lambda (Oxygen Sensor) Regulation
27-00 - Implausible Signal
00519 - Intake Manifold Pressure Sensor (G71)
06-10 - Signal too High - Intermittent
03840 - RPM Sensor Front Right: Incorrect Signal
06-00 - Signal too High
65535 - Internal Control Module Memory Error
00-00 - -
01050 - Glow Plug Monitoring
20-10 - Malfunction in Basic Setting - Intermittent
00527 - Intake Manifold Temperature Sensor (G72)
30-10 - Open or Short to Plus - Intermittent
00522 - Engine Coolant Temperature Sensor (G62)
30-10 - Open or Short to Plus - Intermittent
00543 - Maximum Engine Speed Exceeded -- Engine Warranty VOID!
35-10 - - - Intermittent
Readiness: N/A

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: None
Part No: 17S 937 049 A
Component: BORDNETZ-SG. V1.06
Coding: 00000
Shop #: WSC 00000
VCID: 3C718D3D2C70869

No Faults Found
or DTCs not supported by controller
or a communication error occurred

-------------------------------------------------------------------------------
Address 17: Instruments Labels: None
Part No: 17S 920 804
Component: KOMBIINSTRUMENT VDO V09
Coding: 00100
Shop #: WSC 00000
VCID: F2EDE305BEB4809

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1H0-953-257.lbl
Part No: 1H0 953 257 B
Component: IMMO VWZ3Z0E1731908 V00
Coding: 09600
Shop #: WSC 00000
VCID: 2A5DBB65D6E4089

3 Faults Found:
00546 - Data wiring faulty
27-00 - Implausible Signal
01181 - Initializing; Only 2 Keys Learned
35-00 - -
01179 - Incorrect Key Programming
35-00 - -

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1U0-035-156.lbl
Part No: 17S 035 159 C
Component: Radio YD5 0015
Coding: 00400
Shop #: WSC 00000
VCID: 356798190F5A571

4 Faults Found:
00878 - Connection to Speaker Front Left
36-10 - Open Circuit - Intermittent
00879 - Connection to Speaker Front Right
36-10 - Open Circuit - Intermittent
00880 - Connection to Speaker Rear Left
36-10 - Open Circuit - Intermittent
00881 - Connection to Speaker Rear Right
36-10 - Open Circuit - Intermittent

End ---------------------------------------------

The errors for the speakers were because I changed back to the OEM radio.


We then cleared the errors, and this was the second scan results:


Thursday,19,July,2012,17:16:07:15002
VCDS Version: Release 11.11.3
Data version: 20120401


Chassis Type: 17 - VW Golf Citi
Scan: 01 09 15 17 25 56

Mileage: 230500km/143226miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Part No: 6KS 906 258 k
Component: 1.4 MP9.0 26ZA0003
Shop #: 2227355880
VCID: 7DF7403977EA4F1

1 Fault Found:
65535 - Internal Control Module Memory Error
00-00 - -
Readiness: N/A

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: None
Part No: 17S 937 049 A
Component: BORDNETZ-SG. V1.06
Coding: 00000
Shop #: WSC 00000
VCID: 3C718D3D2C70869

No Faults Found
or DTCs not supported by controller
or a communication error occurred

-------------------------------------------------------------------------------
Address 17: Instruments Labels: None
Part No: 17S 920 804
Component: KOMBIINSTRUMENT VDO V09
Coding: 00100
Shop #: WSC 00000
VCID: F2EDE305BEB4809

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1H0-953-257.lbl
Part No: 1H0 953 257 B
Component: IMMO VWZ3Z0E1731908 V00
Coding: 09600
Shop #: WSC 00000
VCID: 2A5DBB65D6E4089

1 Fault Found:
00546 - Data wiring faulty
27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1U0-035-156.lbl
Part No: 17S 035 159 C
Component: Radio YD5 0015
Coding: 00400
Shop #: WSC 00000
VCID: 356798190F5A571

No fault code found.

End -------------------------------------

Can anybody please explain to me why my car is so extremely heavy on petrol??? It's driving me mad. My uncle said that all the ECU's give that engine fault when you re-chip them?

Please help I'll check tonight for any physical leaks... The water temp sender works 100%.

[Stompie]

that is a shite load of faults!! faak!

00543 - Maximum Engine Speed Exceeded -- Engine Warranty VOID!

there is your problem

[UDC]

Did you clear the errors and check again after a drive

but most likely this is your problem

00522 - Engine Coolant Temperature Sensor (G62) - 4pin water temp

00519 - Intake Manifold Pressure Sensor (G71) - map sensor

[Scatman]

that is a shite load of faults!! faak!

00543 - Maximum Engine Speed Exceeded -- Engine Warranty VOID!

there is your problem

Haha, I have no idea how that happened! I am still busy running the motor in, have been to 6000rpm once

Did you clear the errors and check again after a drive

but most likely this is your problem

00522 - Engine Coolant Temperature Sensor (G62) - 4pin water temp

00519 - Intake Manifold Pressure Sensor (G71) - map sensor

We didn't drive the car, but we did rev it up, switch it off, started it up, revved it a little bit more etc... The water temp sender was picking up nicely up till about 95degC, then the fan kicked in. I didn't check the readings for the MAP sensor though. I'll take it out and clean it with some carb cleaner maybe? The car runs very poorly when you unplug the map sensor. I suspect the map sensor though, it makes sense that it would be the culprit.

[Vinnige Fanie]

Ruk daai kak uit en gaan management

[Scatman]

Ruk daai kak uit en gaan management

Te veel kakka, stock is king! Dis nie asof 'n map sensor vir ewig gaan hou as ek management hardloop nie

[Vinnige Fanie]

Nog beter haal daai 1.4i gras snyer engine uit sit die 2liter terug kry n 288 cam en lekker exhaust en jy sal nie terug kyk nie...

[Stompie]

ek stem, die kar was fine en heel happy met die 2.0l, dink hy gee jou nu kak want hy is kwaad vir jou

[Scatman]

Basturds, ek soek 'n diseasel Ek het nie van die 2.0 engine gehou nie, ek hou meer van die 1.4 motor

[joggiep]

I can't for the live of me remember now but IIRC the MP has the biggisg Water temp sensor on/near the head the 4 pin one .. one for the management sestem the other for the temp guage.. IIRC the fan gets switched on by a seperate switch/sensor on the actual radiator. So just because the fan came on doesn't mean that the water temp sensor is working.. get a Ohm meter and measure the resistance over both sets of pins...

It does however in my mind sound a bit more like the MAP sensor..

[Scatman]

Thanks for the advice Joggie, I checked the temperature on VAG-COM, and it climbed up to 95deg from 75. I don't know if VAG-COM reads the temp off the clusters' pins, or off the ECU's, but it would seem than it is the MAP sensor that's faulty. Does anybody know how much a new one costs? I'll clean it and test the resistance when revving the car to see if it changes? And I'll also check the water temp sender's pins readings.

[Scatman]

I checked my readings with my Ohm-meter tonight. Compared the values with Irfaan's golf... On the temp sender, I get the following readings over the two sets of pins:

"Left side" (thicker Brown and yellow/red) = 0.19 to 0.26, depending on the engine temp.
"Right side" (the other two wires LOL) = starts at 1.5Ohm, and climbs up to over 3, and still goes....

Irfaan's car was the same temp as mine, and I got the following readings over the same two sets of pins:

"Left side" = 0.19 to 0.22, depending on the engine temp. (So that is okay)
"Right side" = stays at +-0.39Ohm....

Map sensor readings were about the same too...

So I'm thinking the Water temp sender has failed... After 2 months!!!!

[Benitovw]

Sorry for the hijack.
My car is just so heavy 80km/18L petrol with normal driving.
If i fit a new water temp. sensor must i get the car scanned to clear faults?
Sorry once again.
Thnx guys

[Scatman]

Sorry for the hijack.
My car is just so heavy 80km/18L petrol with normal driving.
If i fit a new water temp. sensor must i get the car scanned to clear faults?
Sorry once again.
Thnx guys

My sensor shows up normal on the dash temp gauge, and it picked up the temps on the VAG-COM correctly, but my voltmeter says differently. I'm getting about 10 times more resistance than I should be getting on my temp sender. Buy a voltmeter (+-R80), and check your voltages across the two sets of pins dude, it's worth a shot.

[Scatman]

Bump for advice?

[Killerwatt]

the resistance on the temp sender should be in the kilo-ohm range. But any issue here should have been seen in the vag.com tamperature readings.
Pull out the plugs and see if the car is running rich, if it is then more faultfinding is required.
otherwise look around for a fuel leak.

[joggiep]

Water temp sensor is cheap enough to simply replace and see... the readings according to me should be similar.
I would start there ....

[ahmedy]

Guys i am getting the same issues with my 1.4 velociti. I get the same millage per litre as well. I changed the temp switch, i checked the timing, i did a vagcom scan and checked for leaks on the exhaust. All yielded nothing. I am going to check my spark plugs, perhaps the gapping is wrong on them. Maybe this is what you could also check scatman. Please keep me informed if you come across anything else i can check and i will do the same.

[Scatman]

the resistance on the temp sender should be in the kilo-ohm range. But any issue here should have been seen in the vag.com tamperature readings.
Pull out the plugs and see if the car is running rich, if it is then more faultfinding is required.
otherwise look around for a fuel leak.

Yes sorry, the Ohm-meter was set to 20K

I plugged the temp sender out this morning and tried to start the car. It just kept on swinging and almost wanted to start. i then plugged the temp sender in again, and she fired up instantly. I let the car warm up slightly, then unplugged the temp sender again, the revs dropped by probably 100rpm at that point. I drive the car to work (15km), and the fuel gauge stayed where it was when I left home, so I can speculatively say that the fueling is much better. The car also feels a little bit more aggro and pulls better. Well according to the butt dyno

I'll see if the car used the same amount of fuel today when I get home, but I think it will be much lighter on petrol. Yesterday the needle dropped about 1/8th in 30km

Water temp sensor is cheap enough to simply replace and see... the readings according to me should be similar.
I would start there ....

Yes, the values are not corresponding with Irfaan's car's readings. His values stay the same, whereas my one set of pins climbs in resistance to way over 3.0... Irfaan's reading was pretty constant at 0.39... The issue is that the GW ones are such kak quality, this temp sender lasted me 2 months!!! And VW wants R480 for a OEM temp sender. FFS, then I won't be able to enjoy Kyalami fully...

Guys i am getting the same issues with my 1.4 velociti. I get the same millage per litre as well. I changed the temp switch, i checked the timing, i did a vagcom scan and checked for leaks on the exhaust. All yielded nothing. I am going to check my spark plugs, perhaps the gapping is wrong on them. Maybe this is what you could also check scatman. Please keep me informed if you come across anything else i can check and i will do the same.

I'd say check the resistance on your MAP sensor, mine fluctuates and changes as the revs pick up and drop down? The ECU uses the readings from the MAP sensor and the water temp gauge and distributor to add the correct fuel amount. Maybe you have a fuel leak, check under your car, near the tank as well for leaks. Also check if your fuel rail is dry.

[pluto]

rather fix the internal control module error first ...

You dont have a stock 1.4 file if thats the case .

That's a check sum fault. Causes a whole lot of issues

[Scatman]

rather fix the internal control module error first ...

You dont have a stock 1.4 file if thats the case .

That's a check sum fault. Causes a whole lot of issues

My uncle (Shaun from SRD's dad) loaded the map for me. it is not coded to my key/immobiliser. I phoned my uncle and he said that all the chipped ECU's give that error? Or is he wrong? Would these checksum errors cause my car to be extremely heavy on petrol?

[joggiep]

All yielded nothing. I am going to check my spark plugs, perhaps the gapping is wrong on them.

Spark plug gapp by it self will not make such a bigg diffrence in fuel consumption. Sorry buy you are barking up the wrong tree. Dodgy spark plug with cause all types of missfires and loss of power on and off but not what you guys have been decribing.

As with any car start with the basics.. Fuel,spark and timing.. If it's over fueling chances are it's the Map or the Water temp sensor.. if it's grossly overfuelling be carefull of bore wash and change the oil if it smells like fuel !

Spark I don't believe has a that big and invluence on consumption but check it if it makes you feel better..

Timing is important for power not economy directly but indirectly .. what I neam here is that if the car isn't making the power it sould you might dive it harder to keep up with traffic and in doing so use more fuel.

[Scatman]

All yielded nothing. I am going to check my spark plugs, perhaps the gapping is wrong on them.

Spark plug gapp by it self will not make such a bigg diffrence in fuel consumption. Sorry buy you are barking up the wrong tree. Dodgy spark plug with cause all types of missfires and loss of power on and off but not what you guys have been decribing.

As with any car start with the basics.. Fuel,spark and timing.. If it's over fueling chances are it's the Map or the Water temp sensor.. if it's grossly overfuelling be carefull of bore wash and change the oil if it smells like fuel !

Spark I don't believe has a that big and invluence on consumption but check it if it makes you feel better..

Timing is important for power not economy directly but indirectly .. what I neam here is that if the car isn't making the power it sould you might dive it harder to keep up with traffic and in doing so use more fuel.

Yup, I agree. I am pretty certain my fault is the water temp sender...

[Zikker]

I seem to be having a similar problem but on a 2lt.

the car idle is not smooth and sounds as if it is hunting. when driving it has a miss.

Changed the temp sensor and still persist. also tried connecting to vagcom but the one we used was having connection errors.

[Zikker]

what is the internal control module?