I’m finally getting around to getting my ‘87 VDP started. It ran rough when I bought it a year ago. Put new air filter, spark plugs, HT wires, coil, and rotor in it and it died (LOL). Turned out to be the fuel pump. Now with a new pump and fuel filter installed it will not start.
I’ve followed much of the advice on this forum (thank you!) to try to get it started, especially from this thread:
-Confirmed all steps that CEI is working. I get a crisp blue spark at the plugs.
-I have 36 psi at the fuel rail.
-I do not have a NOID (going to Harbor Freight today), but used my test lamp to confirm power at the injectors. Hmmm, I should have cranked it to see if the test lamp goes off and on. Forgot to do that.
- Important: I can get the car to run for 5-7 seconds if I undo and tap together the white and black wire on the inlet manifold/water rail like this guy does in the video:
Then it dies. I assume this is the trigger from the coil to the ECU to energize the fuel injectors. My guess is the amplifier is working in one side to fire the coil, but not the injectors? Thoughts?
Other issues, maybe related are:
1). I have to jump the fuel pump relay to get the pump to work (which makes me believe maybe the original one wasn’t bad in the first place).
2). The exterior lights used to work before it died. Now, they do not. Radio, interior lights, windows, etc. work.
3). Fuel Injection Wiring harness is very brittle. I will need to replace the harness. The Thermotine switch cover disintegrated when I touched it and I see cracks in the wires.
Anyway, could this be the ignition switch that’s causing all the symptoms or a short/ground issue somewhere else?
Thank you in advance for your help! I’d like to get her running again!