:huh: Out on a cruise yesterday with the club and the engine started to miss and backfire and eventually stalled.
After a few miinutes it started and ran ok. However, if I gave any serious throttle it started to backfire and miss. At cruise speeds it was ok. The "Check Engine Light" did not stay on after starting. I made it home and now it is in the grage and wont start.
I checked fuel flow and it is about 42 psi. I checked for spark on one plug wire and its ok.
The ignition control circuit to the coil is getting 12 volts from the ECM.
I want to check OBD codes. (The 93 uses first generation OBD)Can I do that without a diagnostic tool? The manual says I can jump the diagnostic pin to ground pin on the interface connector and codes will display. But where do they display? Is it on the Driver info centre? Is there any need to check for codes if the "Check Engine" light did not stay on after starting?
ALso, if anyone has ideas about the most likely problem please comment. I'm thinking it may be the Crank position sensor? or the ECM? or the Opti-Spark distributor? Or maybe I skipped the timing chain. (It seems to be cranking at mormal speeds). Or maybe water in the fuel? But I dont know how to check these things out.
ANy help would be appreciated.
Thanks.
Mike
After a few miinutes it started and ran ok. However, if I gave any serious throttle it started to backfire and miss. At cruise speeds it was ok. The "Check Engine Light" did not stay on after starting. I made it home and now it is in the grage and wont start.
I checked fuel flow and it is about 42 psi. I checked for spark on one plug wire and its ok.
The ignition control circuit to the coil is getting 12 volts from the ECM.
I want to check OBD codes. (The 93 uses first generation OBD)Can I do that without a diagnostic tool? The manual says I can jump the diagnostic pin to ground pin on the interface connector and codes will display. But where do they display? Is it on the Driver info centre? Is there any need to check for codes if the "Check Engine" light did not stay on after starting?
ALso, if anyone has ideas about the most likely problem please comment. I'm thinking it may be the Crank position sensor? or the ECM? or the Opti-Spark distributor? Or maybe I skipped the timing chain. (It seems to be cranking at mormal speeds). Or maybe water in the fuel? But I dont know how to check these things out.
ANy help would be appreciated.
Thanks.
Mike