ECM, code; history72, current72
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From: chicago Illinois
St. Jude Donor '06
ECM, code; history72, current72
Hi,
With these codes, I believe I will need a new ECM. Got rid of all the other codes. A man from Fisher said $130 for a new one. With my recent experience with NAPA, I Think it would be best to go with GM parts from a dealer. I was told you have to get it burned with your VIN, mileage, and so on; by a dealer anyway. Just thought I would ask our community. I have a lot of trust in it. I'm going to put some miles on my 92 LT1 this weekend. I hope this will be the best way to see what is really going on. Thanks and Happy Forth to you all. Larry
With these codes, I believe I will need a new ECM. Got rid of all the other codes. A man from Fisher said $130 for a new one. With my recent experience with NAPA, I Think it would be best to go with GM parts from a dealer. I was told you have to get it burned with your VIN, mileage, and so on; by a dealer anyway. Just thought I would ask our community. I have a lot of trust in it. I'm going to put some miles on my 92 LT1 this weekend. I hope this will be the best way to see what is really going on. Thanks and Happy Forth to you all. Larry
Team Owner
Joined: Aug 2000
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From: San Pedro CA
well... you don't need to get anything burned.
the ECM only requires you swap the chip from the old to the new ECM.
C4 Guru - Reading CCM Codes 1992/1993
the ECM only requires you swap the chip from the old to the new ECM.
C4 Guru - Reading CCM Codes 1992/1993
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
no, it's not... it's indicitive of a gear selection error.
you really need to get a copy of the Helm Factory Service Manual - www.helminc.com - and debug this problem correctly.
you really need to get a copy of the Helm Factory Service Manual - www.helminc.com - and debug this problem correctly.
Melting Slicks
Joined: Oct 2004
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From: Austin Texas
Originally Posted by bogus
no, it's not... it's indicitive of a gear selection error.
you really need to get a copy of the Helm Factory Service Manual - www.helminc.com - and debug this problem correctly.
you really need to get a copy of the Helm Factory Service Manual - www.helminc.com - and debug this problem correctly.
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From: chicago Illinois
St. Jude Donor '06
Thank you for your replies. The Helms manual, I thought pointed to ECM down at the bottom of the page. Maybe this is not a possibility. I do have the red and white manual, book #1. I will check out your replies and leads. Thank you, Larry
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From: chicago Illinois
St. Jude Donor '06
Thank you, Bogus and Mikec4. I will do some homework. Just wonder if a 86,7,8,or 9 would be simpler. Nothing like these cars. This is the first one I've had and I'm 55. Makes me feel good just crusing. Thanks Guys. LB
Melting Slicks
Joined: Oct 2004
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From: Austin Texas
Originally Posted by lbreen
Thank you, Bogus and Mikec4. I will do some homework. Just wonder if a 86,7,8,or 9 would be simpler. Nothing like these cars. This is the first one I've had and I'm 55. Makes me feel good just crusing. Thanks Guys. LB
You got yourself an LT1, so I think you got the right year!!! The biggest complaint I hear about the LT1's is the Optispark....Never, ever wash your engine, getting water on the Optispark will kill it. Changing these things is a weekend project...If you are not familiar with this distributor design, here is a little light reading:http://www.gmhightechperformance.com...htp_optispark/
Curious, in your original post, you mentioned an error code, but no symptoms? Is you car misbehaving????
Last edited by MikeC4; Jun 29, 2006 at 08:11 PM.
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Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
Originally Posted by n1kki6
Isn't a c72 usually happen from an after market stereo from tapping into the dimming wire? Thats what mine did after hooking up my after market stereo.
Le Mans Master
Joined: Dec 2000
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From: Minneapolis MN
Originally Posted by bogus
That's a CCM code, not an ECM code.
Team Owner
Joined: Aug 2000
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From: San Pedro CA
Dash, meaning the speedo? If so, it is more than likely a CCM code you are getting.
Did you read my link? That still applies, codes and all, for 1994, the only difference is the pins to jump, and I didn't have a 1994 connector to compare it with.
Did you read my link? That still applies, codes and all, for 1994, the only difference is the pins to jump, and I didn't have a 1994 connector to compare it with.
Le Mans Master
Joined: Dec 2000
Posts: 8,740
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From: Minneapolis MN
Originally Posted by bogus
Dash, meaning the speedo? If so, it is more than likely a CCM code you are getting.
Did you read my link? That still applies, codes and all, for 1994, the only difference is the pins to jump, and I didn't have a 1994 connector to compare it with.
Did you read my link? That still applies, codes and all, for 1994, the only difference is the pins to jump, and I didn't have a 1994 connector to compare it with.
Last edited by n1kki6; Jun 30, 2006 at 11:05 AM.
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Joined: Feb 2006
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From: chicago Illinois
St. Jude Donor '06
Hi.
Been on vacation. Sorry to not get back. The 92 LT1 a/t 82k mi. went on vacation with me. no problem shifting. Or no sign of any problem with gear selector. It does have an after market radio though. Very good diagnostic. Thank you. This answers my question. lbreen
Been on vacation. Sorry to not get back. The 92 LT1 a/t 82k mi. went on vacation with me. no problem shifting. Or no sign of any problem with gear selector. It does have an after market radio though. Very good diagnostic. Thank you. This answers my question. lbreen