GTi 8v starting problems...

[lancs83]

Hi - Ive replaced the lift pump, main fuel pump, accumulator, fuel relay etc etc. ~and tried 3 diffrent ECU's but I still cant get my GTi going   

The best it will do is start and run for a few minutes but die as soon as I try and rev it.

But now it wont even do that! it turns and starts and dies after a second. It does actually start then dies straight away. if I try and restart sometimes it dosent even turn over.

any suggestions?  Ive tried testing the earth's and it seems to be earthed fine. (rcker cover, gearbox etc) Thanks

[sparkplug]

is your fuel filter blocked


my hall sensor packed up & had similar symptoms
try this from memory,but check the Haynes manual....
undo the electrical plug on the dizzy , put a multi meter set on DC volts
across the outer 2 connections (on the lead NOT the dizzy)
turn the ignition on , it should show 5volts
if yes it's probably the hall sensor (i had to get mine from Bosch in Germany £94 ..IIRC)
if not the ign module is probably shagged

have a look in the haynes manual (green cover version)

[X4MGS]

Also check all the earths on the car - most ECU issues are due to bad earths..

[apie2004]

I had a similar problem and one of the wires to the MAF had worn through

[lancs83]

Got the car to start and run - engine warmed up and could take revs / drive the car etc. Drove it to the MOT station and they have had it about 2 weeks. Now they have got round to it and it wont start again! Got a spark but no go   

[Mr Blue]

Tried the ignition moduel ontop of the ecu? You still get spark when they are blown.

[lancs83]

Being thick but what is a MAF ? Thanks

[oakgreener]

Mass Air Flow sensor. Fitted in the air intake

[lancs83]

Ok thanks for the suggestions - will check these. I have a spare ignition module. How much are MAF sensors?

Thanks Luke