Need some advice. When I turn the ignition key to start, the engine turns over but will not start. I measured 34psi at the fuel rail so I am ruling out a fuel issue. I just put a noid light on each injector and cranked.. I viewed a dim flicker of the noid light as I cranked for each injector. The cold start injector and extra air valve (injector?) each stayed lit solid while I cranked the engine. What would be a next step? Thanks Ren

 

Check for spark

Cheers
DD

 

By the way when checking for spark (as Doug says) pay particular attention to the distributor rotor arm.
I have seen this fail internally and short to earth on a few occasions.

 

I purchased an inline spark tester and tested each plug. The tester flashed for the plug that was being tested so I conclude I have spark. I should seeing I have a new coil, plugs, ignition wires, distributor cap, pickup coil and ignition amplifier. As previously mentioned, the fuel gauge I installed showed 34 psi at the fuel rail while cranking so I also conclude I have fuel . I should as I replaced the fuel pump and fuel filter. I should note the car performed really well the last time I got it started. Quite well in fact.

Okay, in my original post, I mentioned the Noid light test showed a brief, really weak glimmer of the filament as I tested each injector pulse. What's my next test/thing to test?

 

Also meant to ask, does the 87 xj6 have a crank position sensor? If so where is it located?

 

Should have read more before I asked. The cps is Integrated into the distributor assembly.

 

And the ignition module at the front of the block, right hand side? If this fails, and they do fail (less often on the 6 cylinder than on the V12). The failure point is the GM Delco module inside, D1906.

 

Installed a brand new ignition module/amplifier with no change in symptoms.