93Luminanewb Posted September 21, 2003 Report Share Posted September 21, 2003 Well for abou 2 1/2 weeks now my car has been occasionally sputtering like there's water in the gas. It cleared up for a while and then tonight it came back. This time I added some dry gas stuff, and it all seemed well. Then I got to an open straight stretch, so I mashed it. She sputtered and backfired (sounded like through the intake manifold like a carbuerated engine, but I'm probably wrong) and jerked. This is making me believe that it's not water in the gas, but something major. I was listening on the way home, and there's an intermittent (sp?) miss, and sometimes it's so bad that you can see the RPMs jump around on my tach. I'm thinking it could be a plug wire, but could it really be that serious? That's my best guess, anyone have any other ideas? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 21, 2003 Report Share Posted September 21, 2003 Sounds like your crank sensor wire is grounding out to the block. I been there done that before Robby Quote Link to comment Share on other sites More sharing options...
93Luminanewb Posted September 21, 2003 Author Report Share Posted September 21, 2003 Thanks Robby, I'm gonna check that out right now. Quote Link to comment Share on other sites More sharing options...
93Luminanewb Posted September 21, 2003 Author Report Share Posted September 21, 2003 Well, I just check the wire going to the crank sensor, and its in a loom and it appears to be fine. The wire is plugged into the CPS and the ignition module, so I don't think it's that. I'm kinda stumped now :? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 21, 2003 Report Share Posted September 21, 2003 Okay, now get a timing light and check to see if all your coils are firing Robby Quote Link to comment Share on other sites More sharing options...
SnowDrift Posted September 22, 2003 Report Share Posted September 22, 2003 How does a person check to see if the coils are all firing with a timing light? I'm unfamiliar with these engines, but have nearly the exact same story with my '93 GP with the 3.1 engine. Thanks, SnowDrift Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 22, 2003 Report Share Posted September 22, 2003 Get and Inductive timing light, attach it to the plug wires and watch the light and see if it is strong and on time. Do all 6 wires, and since 2 wires are on one coil, then usually 2 of the wires will show bad. If all 6 do, then the Ignition Control Module (thing the coils plug into) might be bad Robby Quote Link to comment Share on other sites More sharing options...
93Luminanewb Posted September 23, 2003 Author Report Share Posted September 23, 2003 Well, it seems to have cleared up, maybe the dry gas is finally working? I really don't know, but I'm going to try what you said Robby just ot be sure. Thanks for helping out once again Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 No problem. Hopefully it was the gas! Robby Quote Link to comment Share on other sites More sharing options...
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