Hi everyone,
I posted a message last summer. Didn't have time for the follow-up (Thanks speedy Jim for the reply, by the way).
The problem is with a 1982 aircooled westy (Vanagon).
At first, it went so rich that it would lose all power.
Once in the workshop, I had a look on the fuel pressure (looked ok) the fifth injector (which I removed, tested and replaced) and then.... it wouldn't start at all.
Investigating more, I've fouded that the plugs were dry.
12 volts at the injectors, when cranking, but no ground.So I tested the ground connections, they seem to be ok. The double relay (as far as the tests proposed by Bentleys) found ok too... I Changed the ecu with a supposed-to-be-working used one... no ground to injectors when cranking....
By the way, the #3 cyl head temp sensor looked ok...
Question is, could it be a problem with the signal sent from the coil to th ecu? What kind of signal do the breaker points send to the ecu?
I tested the coil with ohmmetre... it's on specs. only thing is when I put the ohmmetre btween ground and open cicuit of the neg of the coil (i.e. when the breaker points are open), once disconnected with the ecu and the plugs, the ohmmetre shows a resistance. it shows open circuit if I unplug the positive lead of the coil. Is this Normal? or is there a ground somewhere on the positive circuit? Is this might lead to a bad signal to ecu?
Steph