Cyc. #3 Misfire
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Pro
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From: Houston Texas
St. Jude Donor '08
Cyc. #3 Misfire
I got the error code that cylinder 3 in my 2000 C5 is misfiring 
. Along with an error code for "open injectors" ? 
I was going to order new Spark plugs and wires. Hoping that it will fix the misfire.
Hoping its not the Coils or injectors.
Anyone have any thoughts?
. Along with an error code for "open injectors" ? I was going to order new Spark plugs and wires. Hoping that it will fix the misfire.
Hoping its not the Coils or injectors.
Anyone have any thoughts?
Tech Contributor
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From: Dyer, IN
Post the codes..
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Ok. So you have a P0200 for injector circuit, and a misfire code for #3 cylinder. So it sounds like you have an injector/wiring issue causing a misfire in #3 cylinder. Not sure why you think plugs/wire will solve your problem.
Tech Contributor
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From: Dyer, IN
Yes you can just replace one, but I suggest troubleshooting first. Examine the wiring to the injector/harness. Listen with a stethoscope to see if it's firing. Use a DMM to check for 12 volts, etc. I can send you a procedure to change an injector, but since you're asking.....are you up to the task?
Thread Starter
Pro
Joined: Apr 2008
Posts: 564
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From: Houston Texas
St. Jude Donor '08
Yes you can just replace one, but I suggest troubleshooting first. Examine the wiring to the injector/harness. Listen with a stethoscope to see if it's firing. Use a DMM to check for 12 volts, etc. I can send you a procedure to change an injector, but since you're asking.....are you up to the task?
I would be up for it. Would do it at a friends house. He has a lift and all the tools I'm sure. Just need to know the procedure, and I'm sure a little help from a friend.
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I have a cheapy injector pulser I bought off fleabay, I hook it up, pressurize the fuel rail by turning the key on then off (with a guage on the schrader valve) and pulse the injector to see if it opens and closes.
Last edited by dougbfresh; Mar 2, 2010 at 02:20 PM.
Tech Contributor
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From: Dyer, IN
