Won’t keep running

[Johnny.I 0]

Hi we replaced head gasket on our 205 gti and have it all built up again but it just won’t keep going every time we try to start it will go every other time for a couple of seconds then some times when throttle is pushed down hard it will run longer but then cuts out , have checked all the plugs are sparking fine and have plenty of fuel, any ideas , also there is a spare spade wire coming from the coil loom beside the coil plug but can’t see anywhere for it to go , maybe a spare

[Thijs_Rallye 87 4 Cars]

Camshaft timed correctly? SAD connector not interchanged with the engine temp connector? This spade connector in your picture is for a radio interference suppressing capacitor, does not have any effect on your issue.

 

 

Edited December 2, 2020 by Thijs_Rallye

[SootySport 23]

As above, the spade terminal doesn’t need to be connected.  
1. check the two fuel lines are the right way round.

2. Check there’s  plenty of charge in the battery or the tachymetric relay won’t operate. starter motor needs to spin up to at least 350rpm. to operate the relay which in turn operated the fuel pump and ignition system, and then the speed sensor kicks in. 
3.  Increase idle speed and see if it runs longer.

Edited December 2, 2020 by SootySport

[SootySport 23]

and 4. Check the small vacuum pipe is connected to the bottom of the throttle body.

[SootySport 23]

On 12/2/2020 at 5:18 PM, SootySport said:

and 4. Check the small vacuum pipe is connected to the bottom of the throttle body.

Ignore no 4, it’s a coolant pipe.