Chip Problem.... Revs will kick in and out, etc.
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Senior Member
Joined: Jul 2001
Posts: 789
Likes: 1
From: Marietta, GA
Chip Problem.... Revs will kick in and out, etc.
Erg. Been having a hell of a time with all of this. Kind of a long story short, had a few problems with the chip/ecu and other stuff.
Well, after getting some anti-oxidation stuff to fix what I think was causing a problem, scrubbed connectors on ECU and chip (numberous times actually), moved my ECU to where it is actually supposed to go (longer story). So yesterday my truck ran like a champ and I was damn happy about it. Got down to school in Atlanta without a problem. Managed to get about a mile off highway and it did this little bump thing it did to me before. The RPM will drop and come back up. I noticed a little bit of it, managed to get to a neighborhood and it definatley was a bit screwy. Hit the gas, probabley like 2000rpm, real steady, and then rpm sunk and quickly regained. I knew it was the chip so I took a few minutes with my key and snatched that bitch out.
So.... does anyone know what that could be? I can guarentee there is no oxidation on either the computer or the chip, and the chip/ecu/ecu harness are very tight and nothing could possibley be loose.
Any help would be appreciated. Thanks
Oh, I've got a Superchips
Well, after getting some anti-oxidation stuff to fix what I think was causing a problem, scrubbed connectors on ECU and chip (numberous times actually), moved my ECU to where it is actually supposed to go (longer story). So yesterday my truck ran like a champ and I was damn happy about it. Got down to school in Atlanta without a problem. Managed to get about a mile off highway and it did this little bump thing it did to me before. The RPM will drop and come back up. I noticed a little bit of it, managed to get to a neighborhood and it definatley was a bit screwy. Hit the gas, probabley like 2000rpm, real steady, and then rpm sunk and quickly regained. I knew it was the chip so I took a few minutes with my key and snatched that bitch out.
So.... does anyone know what that could be? I can guarentee there is no oxidation on either the computer or the chip, and the chip/ecu/ecu harness are very tight and nothing could possibley be loose.
Any help would be appreciated. Thanks
Oh, I've got a Superchips
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
This is an obvious connection problem if it's related to the chip, and you seem pretty sure about that as the problem goes away when you remove it as I understand it.................
As Bob said, you may very well have removed too much material and now the resulting thickness of your PCM's connector is just not enough to allow for a nice snug fit when you push the Superchip module onto the J3 connector - if so, you'll just need to lay down the appropriate type of solder on each contact until you build them back up. If yo have a significant amount of copper showing on the contacts, then you have gone too far - at most, there should only be a little bit of copper perhaps here & there - NEVER do you want any significant amount of copper showing on the contacts, as it's too soft & will wear thru - that's why they have a protective tin coating, which needs to remain intact.
The bottom line is, Superchip are backed by a Lifetime warranty to the original purchaser for as long as they own the vehicle it was purchased for, so I'd suggest calling your vendor or the manufacturer with your information and getting proper Tech Support - don't guess at this.
If you bought your chip used, then just use the SEARCH feature here to retrieve & read any of the literally *thousands* of posts about this exact type of problem - a connection problem between the chip and the PCM.
By the way - as long as the vehicle starts with the Superchip installed, there's generally nothing wrong with the Superchip module itself - the problem is in the connection, and that is an installation issue. One way that the Superchip could be "bad" and still allow the vehicle to start would be if it had a failed solder joint - the symptom in that case would be that it would always start, but would also always stall within 15-40 minutes of driving - EVERY time. This would happen because as soon as that solder joint got enough heat in it from normal operations, it would expand and interrupt one of the circuits *INSIDE* the Superchip, and cause the vehicle to stall - that is *extremely* rare and your symptoms don't match that diagnosis. So I don't think this is a Superchip problem, but instead is a simple connection related issue that must be corrected via installation technique, whether that means building up the contacts, or whatever.
There is also a possibility that depending on how old that Superchip module is and what revision it is, it may have an older contact design where the contacts inside the slot of the Superchip might need to be cleaned out, realigned, etc. That too is pretty rare, but is a possibility.
If you're in a jam and want help to see if your Superchip it OK, give us a call and we can always make arrangements for us to take a look at your Superchip module for you & test it, etc.
Good luck!
As Bob said, you may very well have removed too much material and now the resulting thickness of your PCM's connector is just not enough to allow for a nice snug fit when you push the Superchip module onto the J3 connector - if so, you'll just need to lay down the appropriate type of solder on each contact until you build them back up. If yo have a significant amount of copper showing on the contacts, then you have gone too far - at most, there should only be a little bit of copper perhaps here & there - NEVER do you want any significant amount of copper showing on the contacts, as it's too soft & will wear thru - that's why they have a protective tin coating, which needs to remain intact.
The bottom line is, Superchip are backed by a Lifetime warranty to the original purchaser for as long as they own the vehicle it was purchased for, so I'd suggest calling your vendor or the manufacturer with your information and getting proper Tech Support - don't guess at this.
If you bought your chip used, then just use the SEARCH feature here to retrieve & read any of the literally *thousands* of posts about this exact type of problem - a connection problem between the chip and the PCM.
By the way - as long as the vehicle starts with the Superchip installed, there's generally nothing wrong with the Superchip module itself - the problem is in the connection, and that is an installation issue. One way that the Superchip could be "bad" and still allow the vehicle to start would be if it had a failed solder joint - the symptom in that case would be that it would always start, but would also always stall within 15-40 minutes of driving - EVERY time. This would happen because as soon as that solder joint got enough heat in it from normal operations, it would expand and interrupt one of the circuits *INSIDE* the Superchip, and cause the vehicle to stall - that is *extremely* rare and your symptoms don't match that diagnosis. So I don't think this is a Superchip problem, but instead is a simple connection related issue that must be corrected via installation technique, whether that means building up the contacts, or whatever.
There is also a possibility that depending on how old that Superchip module is and what revision it is, it may have an older contact design where the contacts inside the slot of the Superchip might need to be cleaned out, realigned, etc. That too is pretty rare, but is a possibility.
If you're in a jam and want help to see if your Superchip it OK, give us a call and we can always make arrangements for us to take a look at your Superchip module for you & test it, etc.
Good luck!
Last edited by Superchips_Distributor; Oct 2, 2004 at 02:01 PM.