Subject: engine dies at speed on highway Mon May 19, 2008 8:21 pm
at 40-60 mph engine cuts/dies...coast to side of road, cool, starts-up, computer command block displays "electrical problem", diagnostics haven't id'd specific electrical problem...Anybody have suggestions? Thanks.
deekster_caddy Master
Name : Derek Age : 52 Location : Reading, MA Joined : 2007-01-31Post Count : 7717 Merit : 109
Subject: Re: engine dies at speed on highway Mon May 19, 2008 10:52 pm
We had a similar problem on an '86, turned out to be the 'distributor' or ignition module, I forget exactly what they called it. But it could also be the crank position sensor or a few other possibilities I forget.
You know how to cheat into the advanced diagnostic in the CRT, right? (Does the '89 still have the CRT?)
'89 Riviera One Owner Special
Joined : 2008-05-19Post Count : 2 Merit : 0
Subject: Re: engine dies at speed on highway Tue May 20, 2008 8:41 pm
Selected into the CRT (Centered on Dash W/Screen Display) response I'm getting is generic electrical. Distributor Module sounds like a real reasonable possibility.
Borrowed an EZ Link Diagnostic Scanner today...1st try "car isn't communicating". Continuing to problem solve. Thanks for the help!
deekster_caddy Master
Name : Derek Age : 52 Location : Reading, MA Joined : 2007-01-31Post Count : 7717 Merit : 109
Subject: Re: engine dies at speed on highway Tue May 20, 2008 10:21 pm
I'm talking about diagnostic mode - you push something like 'Heat' and 'Off' at the same time and you can browse every sensor the PCM can see. I don't know if that will help you with this problem, but I think you can see things like distributor voltage and coil outputs.
An excellent diagnostic tool - you don't need a scanner!! Built in!
