I've checked everything I can think of, don't know where to go now.
my93 wax, full forged engine build, just got it back, all built back up, dropped it back in and it won't start. Only real difference apart from the engine is I have relocated battery in the boot to allow more room for intercooler pipe position, it turns over fine but won't fire, no spark and no feed to injectors. Changed the crank and cam sensor for spare ones I had and no difference.
one anomaly I found is with a plug in the coil pack (to check spark) if I just turn on ignition the plug will spark once, it is random and not every time, I have found the same from connecting a noid to the injector plug, it will flash just as ignition comes on but nothing as it turns over, I'm still thinking cam or crank sensor but not really sure how to test them. It is fitted with vernier cam pulleys, gap between pick ups and sensor look ok so can't see that's a problem.
any ideas or where I can get it sorted.
cheers people.

 

Assuming wiring is correct and you have continuity in the circuits.. It may possibly be immobilizer related? Is there an immobilizer system fitted?

 

 

Is it your original engine that you have had rebuilt or have you fitted a different engine?? If it's a different engine it could have the wrong crankshaft sprocket fitted giving wrong signals....had it myself before.

 

I had the exact same problem before

 

Isn't there a injector plug and cam sensor plug that can get mixed up?

 

Happened to me too on the crank pos sensor. Worth a check!