Author Topic: pre ignition fault  (Read 3606 times)

Offline hobbios-gti

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Re: pre ignition fault
« Reply #10 on: 29 January 2010, 22:23 »
does anyone know where the coolant temp sensor is on 2001 gti please

Offline Hulmie

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Re: pre ignition fault
« Reply #11 on: 29 January 2010, 22:26 »
looking at the engine from the front it will be on the right side of the engine. remove your engine cover and it'll be there. have a look in the maintanence section for fitting guide and it shows you the location


mk4 R32 Golf, Reflex Silver, V6

Offline RTechUK

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Re: pre ignition fault
« Reply #12 on: 29 January 2010, 22:39 »
Defo Cut your losses











and get a new mechanic :grin:




A good mechanic will give you a reason why the engine has to be changed,  Pre ignition is a unrequested combustion which will be fuel and heat realted timing,  It can be easy to diagnose with trial and error testing.  Did he do a data logging session using vagcom?


Can you shed some more light on the fault?

Do you get a fault code?
Symptons?
Conditions?
All the time or every now and then?



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Offline hobbios-gti

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Re: pre ignition fault
« Reply #13 on: 29 January 2010, 23:14 »
P0113
 Intake Air Temp.Circ High Input

 P0341
 Camshaft Pos.Sensor Circ Range/Performance

 P1146
 Mass or Volume Air Flow Circ Supply Malfunction

ive replaced the camshaft position sensor and had 2 new mafs all geniuine parts and nothing

There the codes i got on wednesday after having a new maf and camshaft position sensor.

the car stutters like a misfire in 1st 2nd and now 3rd. Over the summer it was intermittent and went away for about 3 months. Then when this cold snap came kept coming on and off but there was no problem in driving pulling in all gears and mpg was spot on.

Since the turn of the year cel came on and hasnt gone off and driving it is getting near impossible. I cant sell it the way it is i just wanna fix it and get a 1.8t.

The vw mechanic has told me he's checked for wiring on the maf and cps and came back with nothing. surely there must be a way to fix this?

Offline RTechUK

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Re: pre ignition fault
« Reply #14 on: 30 January 2010, 00:18 »
The vw mechanic has told me he's checked for wiring on the maf and cps and came back with nothing. surely there must be a way to fix this?

Can you get the car to me for a week?  :wink: 

Nick



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Offline hobbios-gti

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Re: pre ignition fault
« Reply #15 on: 30 January 2010, 00:38 »
Yeah mate! When do you want it dropping off? 

Offline hobbios-gti

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Re: pre ignition fault
« Reply #16 on: 01 February 2010, 18:06 »
anyone think this could be a coolant problem? Is it worth swapping the engine temp sensor?

Offline RTechUK

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Re: pre ignition fault
« Reply #17 on: 02 February 2010, 09:35 »
anyone think this could be a coolant problem? Is it worth swapping the engine temp sensor?

Hello,

For what it costs I would get a new temp sensor fitted, it will take around 5 mins max. Just do it with a cold engine. :wink:

Nick



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Offline rheady

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Re: pre ignition fault
« Reply #18 on: 02 February 2010, 10:41 »
Get a new O ring as well.

Offline hobbios-gti

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Re: pre ignition fault
« Reply #19 on: 02 February 2010, 17:50 »
will do mate.

Im having a beast with it yet again ! now ive just found all the leads have snapped well 3 out of 4. i must have bought the worst golf vw have ever made.