Citi 1.4i not revving

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zi
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Citi 1.4i not revving

Postby zi » Mon Jan 23, 2012 12:22 pm

howzit guys,

i used my citi 1.4 this morning and all was good.

then all of a sudden it did a backfire sound and cut out.

it starts and idles fine... but as soon as i rev it cuts out.

if i rev really slowly and get it past 2500revs it revs perfectly. what could be the problem?

anyone here know?

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Re: Citi 1.4i not revving

Postby MacMan » Mon Jan 23, 2012 12:24 pm

zi wrote:howzit guys,

i used my citi 1.4 this morning and all was good.

then all of a sudden it did a backfire sound and cut out.

it starts and idles fine... but as soon as i rev it cuts out.

if i rev really slowly and get it past 2500revs it revs perfectly. what could be the problem?

anyone here know?


Hey man.

Either water temp sender or coil.
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Re: Citi 1.4i not revving

Postby zi » Mon Jan 23, 2012 12:30 pm

thanks bud.... ill start with the coil...

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Re: Citi 1.4i not revving

Postby neighbourhood terror » Mon Jan 23, 2012 12:37 pm

Could be fuel pressure as well, broken rail? Water temp sender will just make it go rich shouldn't stop it from revving up ...
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Re: Citi 1.4i not revving

Postby zi » Mon Jan 23, 2012 1:08 pm

i just removed the 4 pin wiring plug from the water temp sender and the car had a very lumpy idle. i then removed the water temp sender and put it back now the car idles lumpy and cant rev at all. idle is gone very lumpy.

i think ill replace the water temp sender and then the coils... i hope its not a broken rail that sounds expensive :roll:

i should have mentioned , there was a tiny puddle - (very very small) i drove through but i checked and double checked the distributor and the leads all are dry. do u guys think i should just wait a little to make sure everything is 100 percent dry?

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Re: Citi 1.4i not revving

Postby zi » Mon Jan 23, 2012 1:59 pm

Image

can someone tell me if the red circled part is the coil? i see its sparking when the car idles...

i seem to have confused distributor with coil :oops:

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Re: Citi 1.4i not revving

Postby Powl » Mon Jan 23, 2012 2:06 pm

Sounds very similar to when my fuel rail went, try take the fuel pressure regulator off and move the inner pipe of the fuel rail around, if you feel it moving or hitting the outer pipe then its probably that.

Cost a little over R1000 for mine from Goldwagen, but if you look around Gumtree enough, you might find one too.

Edit: Another easier way to check, is to block the rubber fuel return line with pliers or something, if the car does idle better, then its probably fuel pressure and most likely the rail

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Re: Citi 1.4i not revving

Postby MhVW » Mon Jan 23, 2012 2:16 pm

That's the coil!
If you can see sparks at the coil on idle and the HT lead is not damaged, the insolator on the coil might be damaged.
Replace the coil in that case.
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Re: Citi 1.4i not revving

Postby neighbourhood terror » Mon Jan 23, 2012 2:52 pm

MhVW wrote:That's the coil!
If you can see sparks at the coil on idle and the HT lead is not damaged, the insolator on the coil might be damaged.
Replace the coil in that case.

+1
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Re: Citi 1.4i not revving

Postby zi » Mon Jan 23, 2012 3:51 pm

thanks for the replies guys.

Went to goldwagen and got a new coil.... car wouldn’t start at all. Goldwagen exchanged unit for another one and all is working 100% now.

thanks again guys i learned something new today.

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Re: Citi 1.4i not revving

Postby MacMan » Mon Jan 23, 2012 4:16 pm

neighbourhood terror wrote:Could be fuel pressure as well, broken rail? Water temp sender will just make it go rich shouldn't stop it from revving up ...


Depends which way it fails... if the sender is telling the ECU that the water is hotter than it actually is then it will lean out the mixture. I have had this on 2 different cars. The one wouldn't start at all and the other one would start and idle (albeit very rough) and as soon as you tried to rev it, the motor would die. A new water temp sender fixed both cars.

Zi, yes if you can see sparks when the car is idling then the coil is cracked (usually happens when water gets sprayed on it when it is hot).

I had this on my friends Polo and it had the same symptoms as your car.
'06 UG Golf MKV GTi - 208Hp / 322Nm @ KAR (DP + Intake)
| DIY+ | S3 short shift | Flowtech DP | ITG Maxogen | REVO2 | Autotech HPFP | RCD 510 | H&R |

Ex:
'04 Golf MKIV GTi.:R
'99 Citi Golf 2.0i

Patience is the ability to idle your motor when you feel like stripping your gears.

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