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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Wed Aug 25, 2010 9:50 pm Post subject: |
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I bought a brown car once...
Turned out to be a truck...
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Wed Aug 25, 2010 9:51 pm Post subject: |
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Ahh sorry. wasnt meant to do that.
Was just trying to point out that test machines are faulty in that they arent testing in the proper environment. Also many tests when a part fails the test you know its bad, but if it passes you dont know. A bad part can still test good. If your diagnosis leads you to believe its a certain part many times the only way to rule it out is a swap. It's whats known as replace with a "known good part" And yes.. that is how its actually written in the service manuals. Like we all have a pile of known good parts for every car we work on. I always liked Honda telling me to replace the ecm with a known good part.
Anyway, I knew I shouldnt have posted that way to begin with. I'd help further but honestly I make a shitty internet technician. Especially with something I don't remember ... like this.
Btw does it backfire once or continuosly? And does it do this every time? Does it run fine up until that point? |
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flea Member

Joined: 25 Jul 2008 Posts: 1246 Location: Raymond WA
1991 Chevrolet Camaro RS
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Posted: Wed Aug 25, 2010 9:52 pm Post subject: |
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ohhhhh and its a +SS too
Thread back on track.
Thanks Brandon  _________________ Killing mailboxes since 2009 |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Wed Aug 25, 2010 9:55 pm Post subject: |
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| Super Slug of the northwest brown variety. |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Wed Aug 25, 2010 10:00 pm Post subject: |
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| chevymad wrote: | | Super Slug of the northwest brown variety. |
Man, that was a fun truck. Looked like poop, ran like poop, smelled like... well it smelled like gear oil, but that's another story.  |
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jakemk8706 Member
Joined: 18 Apr 2006 Posts: 266 Location: portland oregon
1991 Chevrolet Camaro Z/28
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Posted: Thu Aug 26, 2010 12:11 am Post subject: |
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Sorry. I'm just looking for solitons not problems. _________________ gas brake dip dip |
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jakemk8706 Member
Joined: 18 Apr 2006 Posts: 266 Location: portland oregon
1991 Chevrolet Camaro Z/28
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Posted: Thu Aug 26, 2010 12:21 am Post subject: |
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And yes it backfires pretty constanly. _________________ gas brake dip dip |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Aug 26, 2010 8:07 am Post subject: |
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| jakemk8706 wrote: | | Sorry. I'm just looking for solitons not problems. |
By definition, solutions require problems. |
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iansane Member

Joined: 16 Jan 2004 Posts: 5742 Location: Bothell
1991 Pontiac Trans Am
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Posted: Thu Aug 26, 2010 8:57 am Post subject: |
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| aaron_sK wrote: | I bought a brown car once...
Turned out to be a truck...
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Damn. If I wasn't so poor I really would've liked to keep that thing.  _________________
| Quote: | | Sometimes I actually think I'm slightly retarded in the mouth. |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Thu Aug 26, 2010 4:59 pm Post subject: |
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| Does it start to backfire at 3k? or always backfiring? or does it only do it under a load. Is it missing all the time? so many questions.. |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Thu Aug 26, 2010 7:30 pm Post subject: |
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Blufbody.. the board has just gone slightly wacko.. I tried to quote your post..
god i love internet wrenching lol its all just a shot in the dark, id say use a good icm to swap and test and go from there, if it works sweet, if not then keep diagnosing it til you figure it out but the autozone test isnt the best thing in the world as people have pointed out, not to mention most of those guys are minimum wage lackies who cant tell their ass from a torque wrench
But it added my comments like you said them.. then it wouldnt let me correct that.. finally i tried to delete and it erased your post.. |
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BluFbdy Member
Joined: 16 Jul 2010 Posts: 915 Location: Port Orchard WA
1989 Chevrolet Camaro RS
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Posted: Thu Aug 26, 2010 7:52 pm Post subject: |
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Lol it happens I've heard of thread jacking but a post jack is new to me haha _________________ If you expect a kick to the balls and get a slap to the face its still a victory
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Dewey316 The Lama

Joined: 08 Jan 2004 Posts: 7295 Location: Bringing the tech
1990 Chevrolet Camaro RS
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Posted: Thu Aug 26, 2010 8:13 pm Post subject: |
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| chevymad wrote: | | Blufbody.. the board has just gone slightly wacko.. I tried to quote your post.. |
That is what happens when you are a moderator....it lets you edit...which is right next to quote. Stop drinking on the Job B!!!! |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Thu Aug 26, 2010 8:19 pm Post subject: |
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| Except when I tried to fix it, it said I can't edit because it wasnt my own post. Also same time it was giving me fits, one of mike's posts disappeared. There was some kinda hiccup. |
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BluFbdy Member
Joined: 16 Jul 2010 Posts: 915 Location: Port Orchard WA
1989 Chevrolet Camaro RS
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Posted: Thu Aug 26, 2010 8:24 pm Post subject: |
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Win for technology right? Lol _________________ If you expect a kick to the balls and get a slap to the face its still a victory
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jakemk8706 Member
Joined: 18 Apr 2006 Posts: 266 Location: portland oregon
1991 Chevrolet Camaro Z/28
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Posted: Fri Aug 27, 2010 1:52 pm Post subject: |
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Update: replaced icm with a brand new one. It ran slightly better until twenty mins ago when I was driving it and it completely died. The ses light never went away and it still backfired occasionally under load. According to my scan tool it still is throwing the same code 43...fml _________________ gas brake dip dip |
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BluFbdy Member
Joined: 16 Jul 2010 Posts: 915 Location: Port Orchard WA
1989 Chevrolet Camaro RS
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Posted: Fri Aug 27, 2010 4:04 pm Post subject: |
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Okay well we know the icm is good so that leaves the knock sensor, check to make sure its not loose, the wiring going to it is snug and in good shape, I don't. Know how connectors fare up here but when I was in az I was replacing a new one every week from them getting brittle, and last resort swap the sensor, before you do that check your est wire, the brown one you disconnect to adjust your timing, if there is a fault in the wiring there it will pop code 43 and act as if there is a knock, check the whole circuit, maybe its just come unpinned from its plug and isn't getting a good connection _________________ If you expect a kick to the balls and get a slap to the face its still a victory
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