Do 46/47RE trans turn on the CEL with codes? (98)
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Record Breaker
Joined: Aug 2007
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From: live oak, ca
i guess i should provide a story... the 98 has been swaped from a RE trans to a manual, the CEL is on but also has a EGR code, i can cure the egr code, and if that turns off the CEL, i'll be in buisness... if the trans codes keep the CEL on, i either have to find a way to fool the PCM or change out the PCM for the corect manual PCM, but that gets costly, and cant pass smog with the CEL on in this POS of a state
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Joined: Apr 2010
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From: Clayton MI
An EGR Code? But, your truck doesn't even HAVE EGR......... That one always confuses me. 
Trans codes may or may not turn on the lite. Just depends on the code. Since you don't even HAVE the auto trans any more, you are going to have a HOST of codes for it, and chances are REAL good, that will also turn on the lite. You can get a PCM for a manual trans truck, and have it flashed to your vin, or, you can get a tuner, that just has manual trans tunes on it, and solve the problem that way too.
Trans codes may or may not turn on the lite. Just depends on the code. Since you don't even HAVE the auto trans any more, you are going to have a HOST of codes for it, and chances are REAL good, that will also turn on the lite. You can get a PCM for a manual trans truck, and have it flashed to your vin, or, you can get a tuner, that just has manual trans tunes on it, and solve the problem that way too.
Thread Starter
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Record Breaker
Joined: Aug 2007
Posts: 2,283
Likes: 2
From: live oak, ca
An EGR Code? But, your truck doesn't even HAVE EGR......... That one always confuses me.
Trans codes may or may not turn on the lite. Just depends on the code. Since you don't even HAVE the auto trans any more, you are going to have a HOST of codes for it, and chances are REAL good, that will also turn on the lite. You can get a PCM for a manual trans truck, and have it flashed to your vin, or, you can get a tuner, that just has manual trans tunes on it, and solve the problem that way too.
Trans codes may or may not turn on the lite. Just depends on the code. Since you don't even HAVE the auto trans any more, you are going to have a HOST of codes for it, and chances are REAL good, that will also turn on the lite. You can get a PCM for a manual trans truck, and have it flashed to your vin, or, you can get a tuner, that just has manual trans tunes on it, and solve the problem that way too.
it has 5 codes i believe... just looking for an answer on the trans codes before i spend time and $ on the egr fix, if the CEL stays on, it will be a waist, otherwise its about $600 for the PCM
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Joined: Apr 2010
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From: Clayton MI
Ok, missed that little tidbit. Makes a difference.
Check with your local parts store for a PCM..... I think they have them for 250 or so. Of course, those are for gas engines.... diesel may be more expensive. Don't know.....
Makes a difference.Check with your local parts store for a PCM..... I think they have them for 250 or so. Of course, those are for gas engines.... diesel may be more expensive. Don't know.....
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Joined: Apr 2010
Posts: 87,483
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From: Clayton MI
Ouch.
I don't think there ARE any manual trans codes, though, the wiring harness is different. So, you could supposedly just replace it with a manual trans PCM, and be golden. I think. (pretty sure.)
I don't think there ARE any manual trans codes, though, the wiring harness is different. So, you could supposedly just replace it with a manual trans PCM, and be golden. I think. (pretty sure.)
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Record Breaker
Joined: Aug 2007
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From: live oak, ca
ya the convrsion on my 98 is running a manual PCM with an auto harness and it is perfect, just had to ground the nuetral start wire and connect the reverse lights, but this mess is on a buddies truck, we are trying to fix for him
