Golf cutting out intermittently

Over the past 6 months my 2003 Golf has been sporadically cutting out while I am driving it.

I have had it in the garage for a total of 3 weeks and their response is "sorry, as it's not running any codes we just can't figure it out, you may be best just trading it in."

They did change the cat converter and replaced the coil pack and it is still cutting out.

I told them that it seems to happen when my gas is low but they said it could cost a lot to fix it as they would have to replace a few different parts to see which one would solve the problem.

Asked on 21 November 2011 by Maria0022

Answered by Alan Ross
Must admit it is difficult to identify a fault that is not constant.
One would have thought that a diagnostic check would show up the fault.
However since it has not then really you have to go through a checking sequence to see if any of the components are at fault.
This is a list of what we would suggest is checked. (in this order)
1. Immoboliser
2. ECM (engine management) basic setting
3. Fuel pressure/deliver rate/ fuel pressure regulator
4. EVAP (evaporative emission) cannister purge valve
5. EGR (exhaust gas recycling) valve
6. MAF (mass air flow) sensor
7. MAP (manifold absolute pressure) sensor
8. TP (throttle position) sensor
9. ECT (engine coolant temp) sensor

As you can see the list is rather long, but would suggest that if the local garage was to systematicaly carry out the checks it may then find the fault.
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