Lol Good luck with your project. Well, I believe that Painless harness covers all the computer wiring also, the harness in question is specificially made to work with the factory OBD2 computer It covers the injection system, transmission including the tach , ignition timing, dashboard diagnoistics, brakes I know relatively nothing of my current OBD1 computer, so there would be no "difference" in the case of learning the OBD2 computer.
I know OBD2 is a lot better and it's very programmable, so that is awesome. If the problem comes up Thanks again for all the help. TwinTT, I have been drooling over your truck on Cardomain since like a month ago. That thing must be ridiculous, very awesome man.
I tried commenting on it and rating it There is no option to comment or rate it, did you disable it for that vehicle? Either way, very awesome. I could only dream to have the knowledge and money Hey thanks for the kind words, I have the comments part turned off at cardomain. I just use it for a place to hold some pictures. Here is the Painless picture of the wiring harness. From what I can see, they only have two of the four ECM, plugs on the new engine harness, unless that is a third one sideways, in the upper left hand corner.
The things that will be plugging into the other ECM ports, will be things like cruise control, brakes, 4 wheel drive controls, etc. I just took a look at the installation manual and from what they are saying, everything is there. The other plugs must be in the picture, but I can't spot them.
They do mention that the computer should be reprogrammed to eliminate any features not being used. There are a few different connections on the 4L80e trans that are not used on the 4L60e.
It would be good if they had a universal harness that covers them both, in case you decide to move up to a 4L80e in the future. I have heard nothing but good things about the Painless products.
I'm sure they have it covered. The installation manual looks very detailed. You might want to go through it before ordering the harness. It will be great to have nice new, OEM connectors on everything. Did you say this was your daily driver? Painless 96 and later. Last edited: May 27, Well, that is also the picture of the "Extra Long" harness, if you check out the photograph of the standard size one the wires are layed out differently in that picture it seems that there are four visible wide plugs.
Also, if you read that insturction manual. Log in Register. Search titles only. Search Advanced search…. Forums New posts Search forums. Builds New builds Latest reviews Search builds. Media New media New comments Search media. Resources Latest reviews Search resources. Everywhere Threads This forum This thread.
Filters Search. The big thing is you will need to take the wiring harness from the newer one and fit it to the older car. I would change the transmission and exhaust as well. Also the fuel pump is different in the tank I am pretty sure so it will be a labor of love which it sounds like you have : I will help you in every step so please ask any questions and post pictures as you go.
Please let us know what happens. Cheers, Ken Was this answer. I have looked at both engines, my 94 appears to have what I would call a regular intake, my 99 appears to have a two piece intake.
I bought an 87 GMC with a out of a 79 vette. The motor is tired and needs to be swapped out. So I purchased another 87 with a I have a set of vortech heads but I am gonna run a regular hydraulic lifter cam not a roller. Should I change the valve springs? Oddballtruckguy answered 3 years ago. I would use heads and a midrise carb intake cfm carb. A points or at least A HEI dist.
Git rid of the 4L60 and the r4. And use SM manual transmission. As for the transfer case I would use a NPC. You do this and no more computer BS to never to go wrong and will last longer. ANU answered 3 years ago. I am using a performance engine and only swapped the cam to a TBI and used intake with a TBI adapter plate works just fine passed smog and burns rubber.
The vortecs have a crank sensor and the pre vortecs don't how do you go about make it work in a 97 cause the bolt hole on the timing chain cover are different.
Ryan answered 3 years ago. GuruXWWK6 answered 3 years ago. Are all 's the same? I have a timing chain for an 81 camaro, and i was wondering if it would fit in a 91 5.
OHG answered 3 years ago. BradBunker answered 2 years ago. I have a TBI 5. Would that in fact do the trick? I do not want to swap heads or intake.. GuruGJ answered about a year ago. O I have a GMC 5. GuruGFM9C answered about a year ago.
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