Mk1 caddy 1.6d engine swap 1.8 16v kr

does it keep going if you hold the revs up? if not listen out for the fuel pump, does it run on after the car cuts out

 

the main pump should be pretty loud, 5th injector doesnt tell you all that much as it doesnt need much fuel pressure to spray vs main injectors. my 16v guide covers fuel injector tests if you follow that it'll show if theres enough fuel pressure to open them

 

ok, may just need to open the idle screw to get it idling, maybe adjust CO screw a little. with a new start project like this it can be a faff to get all the screws close enough to keep engine running long enough so you can get it setup proper

 

youve at least got brake servo hose on right or blocked on the inlet?

 

ok wont be too much of an issue then for idle, but get them sorted at some point. you should have vac line to ecu, then one over to driver side which splits off using a T piece to the 2 valves. dont need to bother with the warm air flap or anything can leave that off

 

if the pump isnt running on after engine cuts that suggests you're loosing the ecu or the spark signal to it, rather than say if the engine stalled out for example.

yes if you earth the red/yellow wire on the plug near ecu the pump should run, but to rule out anything to do with the fuel control circuit just swap a 17, 18 or 100 relay into the fuel pump socket ten pump will run all the time with ignition. if that helps then look at the fuel trigger red/yellow wire and the ecu. if not thats ruled out look elsewhere

 

yes try running the car with that relay swapped over, if it runs perfectly look at the relay trigger circuit. if it still has same symptoms look elsewhere

 

so the running problem is solved? if so put the 67/80/167 relay back in and run an earth to the red/yellow and see how it runs like that