Im in the process of trying to start my engine swap. A 3800 SC II from a 2000 Pontiac Bonnivile. Fuel tank has plenty of gas. Disconnected the fuel line to see if Im getting fuel,yes there is fuel (new fuel pump and fresh gas).No blown fuses and the fuseable links look good. Seems like Im not getting any spark, to the coil pack. I grounded the base of the coil pack (no change). What about the PCM, do I need to ground the case? Thoughts or sugestion , befor I have it towed to the shop. Thanks.....James.
Yes, I had that edited out (or what ever they do). I did move the coil pack,by lengthing the wireing....slight posibility, I got a wire or two wrong. Ill take a look at that again.
The ignition module gets its ground through the wire coming off the harness not the case and the PCM also does not need the case grounded. Check to make sure you have both battery power and ignition power to the PCM. Is the PCM programmed as a Bonneville or did you reprogram it as a GP and wire the harness to match as some people do. Dan
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DARN Cars now open with Over 30 years wiring experience between cars and trade as an avionics technician in both Canadian Air Force and civilian aviation. Over 25 years experience building and modifying cars. Over 10 years of full Fiero engine swaps and harnesses building and still going.
The ignition module gets its ground through the wire coming off the harness not the case and the PCM also does not need the case grounded. Check to make sure you have both battery power and ignition power to the PCM. Is the PCM programmed as a Bonneville or did you reprogram it as a GP and wire the harness to match as some people do. Dan
Also make sure you have power While Cranking not just with the key on.
Here is a good website for trying to track down ur issue. I have used it several times to troubleshoot no fire issues due to bad parts or wiring. The ICM harness is a known culpert of causing no fire issues from bad ground wire to the pin in.the plug getting pushed back just a little.
Here is a good website for trying to track down ur issue. I have used it several times to troubleshoot no fire issues due to bad parts or wiring. The ICM harness is a known culpert of causing no fire issues from bad ground wire to the pin in.the plug getting pushed back just a little.
Originally posted by FIEROFLYER: The ignition module gets its ground through the wire coming off the harness not the case and the PCM also does not need the case grounded. Check to make sure you have both battery power and ignition power to the PCM. Is the PCM programmed as a Bonneville or did you reprogram it as a GP and wire the harness to match as some people do. Dan
Quite some time ago,the PCM was programmed by Loyde at Fast Fieros. I asume he knew what he's doing. I may have goofed some where.
Also an easy place to mess up when making a harness is to mix up the two white wires coming off the small ignition module harness. Pin A goes to the PCM and pin E is for the tach if they are mixed up it will create a no start issue. Also check to make sure the plug is ok on the crank sensor as I have found a few over the years with bent pins on the sensor or the connector damaged. Dan
Here is a good website for trying to track down ur issue. I have used it several times to troubleshoot no fire issues due to bad parts or wiring. The ICM harness is a known culpert of causing no fire issues from bad ground wire to the pin in.the plug getting pushed back just a little.
Thanks for that site, I been having trouble with a 02 sensor heater that been driving me crazy, with that site I think I can figure it out. Thanks again. All trouble shooting site should be like that one, even dummies like me can figure it out
Thanks for that site, I been having trouble with a 02 sensor heater that been driving me crazy, with that site I think I can figure it out. Thanks again. All trouble shooting site should be like that one, even dummies like me can figure it out
Yeah I love that site as it breaks it down...Glad it helped and hope it helps others.
Thanks for that site, I been having trouble with a 02 sensor heater that been driving me crazy, with that site I think I can figure it out. Thanks again. All trouble shooting site should be like that one, even dummies like me can figure it out
Yeah I love that site as it breaks it down...Glad it helped and hope it helps others.
