4K starting problems
audi at humanspeakers.com
Wed Mar 17 21:52:11 EST 2004
> Thanks again, Huw. Along with the new switch, we tested the voltage at the
> coil and the other places it needs to be. Battery voltage all around, even
> though the spark is erratic and even appears 'weak' during cranking. The
> diode test light (wonderful tool, every one of us should have one) cycles
> red/green indicating signal at the negative side of the coil, the spark just
> doesn't correspond ..........................
> Everything looks just like the other 2 cars under the dash. There IS one
> splice for the new stereo just downstream of the ignition switch, but the
> symptoms remained with the stereo out of the car, so that wire's not doing
> anything bad. I can crank the car 'til the cows come home, it'll only start
> when the key's released, some of the time. Other times, it appears to start
If it does that then the problem must be at least partly intermittent.
have you measured fuel pump voltage while all this is happening? With a
weak spark maybe even though the coil is flashing, maybe the FPR isn't
turning on. Maybe the FPR is bad. Maybe the ignition wires are poopy.
Or the cap/rotor...
Though, since it manages to "catch" and start just as the starter
disengages, meaning it can actually start in a very short time when
things are "right", I'm still thinking something is not getting power
during cranking. I'd take a real close look at the hacked radio wire
and see how many strands of the wire it was scotchlocked (?) to are left
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