i have 91 bonnie it'* has run pretty good for what i paid for it but the other day it just stoped starting,it cranks over fine until u can kill ur battery and sometimes i could get to run for a few seconds then it would run but rough but with not too much power and the engine light on,the next day after starting the batterie and trying tostarted for a good 10-15 mns it started and it would it die then it finnally ran and i drove it but didn't shut it off til i got home then tried immediately to started and it did but then the next won't start at all i've read code 42 from the computer and i think is the
42 - Electronic Spark Timming Circuit ? not sure what to do or where to look?

please help me i'm new to the forum and u guys seem pretty awesome i love the tal nad comments..

wpg,canada
91 bonneville le
3.1 eng
auto
fuly loaded
275000 kms

When it won't start, check for spark at the plugs , and injector pulse at the rail.
Let us know what you find.

hi was wondring if you could tell me how hard is it to remove the spark plugs from the engine so i can check for spark?
also where do i find the injector pulse at the rail and does the code 42 i retrieved mean anything else?

code 42 means its your ignition coil or your ignition coil module... my thought is its your ignition coil... its a common problem on older cars..

yeah, i would try replacing your ignition and coils and see if that fixes it. you can either replace them with type II or magnivox. I have a set of magnivox coils if you need them.

hey guys thanks again for ur help i'm going to work on it tommorrow and see what could be the problem i have my battery charging over night... to try it


thanks
i'll keep u guys posted

Does anyone know how to check if your electronic spark module is good?
is that the thing here all the spark plug wires come from going into the engine, also i tried to check if i could get a spark by sticking a screwdriver into one of the spark plug connections and the electronic spark control but saw no spark?

car wont' start turns over but doesnt start so could it be the electronic spark module????? :( :( :( :( :( :( :( :(

Take a spare spark plug and put the wire on it. and ground it against the manifold while someone cranks the engine. You should see the plug sparking if the ign is working.

hmmmmmm

Just what I was thinking, I wasn't aware that any Bonnevilles of this era got a 3.1.