So long story I purchaced a 1998 tj that was hit in front end. Removed the bent frame and replaced with another from a 1999. While I was doing that I used some of the wiring from the 1999 in the 1998 because I wanted to put cruze in it. I found out the harnesses are not the same and put all the 1998 harness back in. I had the unit running before teardown. Now the Jeep will start and shut down after only a couple seconds.I have fuel pressure all the time when trying to start.I have no CEL at all? I tried another ECM and does the same thing? I have checked all the wiring several times I dont believe it is that. I do this stuff for a living this one has got me stumped??
1998 TJ won't run after frame swap
- Thread starter flyman
- Start date
I have a black key. to my understanding that has no chip? If it is how do I go about fixing it?
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Did you swap over the steering wheel/column/ignition etc. from the other Jeep for the cruise control? Here is a thread that shows how to enable SKIM on a 98, perhaps it will help you in some way. Since you didn’t have it before, make sure you use all the important pieces from the original Jeep that didn’t have SKIM.
https://wranglertjforum.com/threads/sentry-key-immobilizer-module-skim-install-retrofit.44/
https://wranglertjforum.com/threads/sentry-key-immobilizer-module-skim-install-retrofit.44/
Is the SKIM module installed? Which PCM are you using? Explain which PCM you first used after the wiring swap, which one was swapped in, and whether or not the key with the circle and slash is illuminated on the dash when it dies.
Skim module installed but not plugged in as it is now. On the first power up I had the wiring harness from the 1999 installed to the skim. and plugged in. The key with circle showed up on dash I tried to start it and ran for a few minutes and dies. Then I removed the 1999 harness and reinstalled the 1998 harness. It did the same starts and dies. I ordered a reman PCM from FS1 installed yesterday same thing? To be clear it has every thing that it was running with before tear down but seems to have a SKIM code that wont allow it to continue to run??
Here are the SKIM basics. Use them to figure out what you did. If the SKIM module is plugged in when a non SKIM activated PCM is installed and powered up, that activates the SKIM function and SKIM keys will be needed along with pairing the SKIM module to the PCM in order for it to start.
I suspect the reman has activated SKIM and they didn't catch it especially if the light is turning on after it starts and dies.
All your symptoms point to an activated SKIM that isn't seeing the keys and programmed pairing.
The key light is not coming on now. Is there any to defeat the skim without sending the PCM off and spending more money?? I agree it seems like a SKIM related issue. Do you know if a dealer could provide the correct module and keys to make this thing work?
Did you follow the directions from FS1, just swapped my son's F-150 and they were very explicit with their instructions.
If you could easily defeat the SKIM, it wouldn't be a very good system. There is no way to defeat it once it is activated in the PCM without programming and not anything a dealer can do. It has to go to an aftermarket programmer.
If the light isn't coming on though, that points elsewhere.
Interesting, I had to sign an on-line release that I understood the process and agreed to the conditions before completing the transaction.
Thanks for all your help guys. anybody got a spare ECM I could try? Or want to buy a nice TJ project?
If you send me the original PCM, the SKIM module, and the ignition cylinder, we can program some keys and pair the module to the PCM to make it all work with each other.
That sounds great how much will this cost me? Where do i send it to? how long will it take? Thanks.
What if I only wanted the SKIM removed from the PCM?
What if I only wanted the SKIM removed from the PCM?
It will cost about 75 bucks for the labor. We have to pull the SKIM, PCM, and ignition cylinder from a rig we have here. Then we have to install your stuff into it and then use the Chrysler DRB scanner to get it all working, take it back out and reinstall the other stuff back in. If you want to supply the SKIM keys, get 3 of them. If not we can get them but we only use OEM and they have gone up in price. I believe they are about 45 each now, maybe 50.
We use USPS Priority Flat Rate and I think it all fits into a medium which is about 15-16 bucks. That gets it back and forth pretty fast for a decent rate. Worst case is a large which is about 20 bucks.
If all goes well, we turn it around in one day. Mail doesn't arrive until noon. We could likely get it done that day and ship it the next.
We only have the Chrysler DRB scanners. We can't modify the PCM to delete or disable the SKIM function.
sounds good let me pick up some keys and I will get sent off to you, Where do I send it to? Do you accept Paypal?
Or how do you want to get paid?
Or how do you want to get paid?
Send an email to [email protected] and we'll go from there. I accept PayPal, cash in any form of US currency, Jeep parts that I have a need for, Yuban Coffee in traditional grind and a previously negotiated amount, gift cards, Amazon credit, 03122 Wolverine boots in size 11M, Vintage Levi denim shirts with two pockets, Carhartt Double front logger jeans and likely some other things of value I'm overlooking.
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