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PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

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Old Jun 1, 2015 | 08:41 PM
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1slowbusa
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Default Lincoln Nebraska
Hi All,

I travel quite a bit for work and this week I am in Lincoln Nebraska until Wednesday. I wanted to throw out an offer to help troubleshoot or just even support any problem anyone is having. Or just get together and talk cars.



Let me know.
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Old Jun 2, 2015 | 07:34 PM
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Dang, I'm about 2 and a half hours northwest of Lincoln. I could use some help with some wiring gremlins after a 98 to 99+ swap. Cheers to you for offering a helping hand!!!
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Old Jun 2, 2015 | 08:35 PM
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Originally Posted by red_00z28
Dang, I'm about 2 and ahalf hours northwest of Lincoln. I could use some help with some wiring gremlins after a 98 to 99+ swap. Cheers to you for offering a helping hand!!!
Yea, that's a little to far but, what are the issues you are dealing with?
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Old Jun 2, 2015 | 09:28 PM
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Originally Posted by 1slowbusa
Yea, that's a little to far but, what are the issues you are dealing with?
First was a no start issue, tracked that down to the theft relay not sending the signal to the starter relay. for now i just grounded that wire at the starter relay.
Next is not being able to connect to the PCM through the OBD2 port. I've verified the grounds on pins 4 and 5 as well as +12V on pin 16. I traced pin 2 all the way back to the PCM. Still stumped by this one.
Then there is the TCS issue i havent looked into yet. My biggest thing is the PCM connection issue as I have a dyno tune scheduled for July 10th.
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Old Jun 3, 2015 | 08:19 AM
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Originally Posted by red_00z28
First was a no start issue, tracked that down to the theft relay not sending the signal to the starter relay. for now i just grounded that wire at the starter relay.
Next is not being able to connect to the PCM through the OBD2 port. I've verified the grounds on pins 4 and 5 as well as +12V on pin 16. I traced pin 2 all the way back to the PCM. Still stumped by this one.
Then there is the TCS issue i havent looked into yet. My biggest thing is the PCM connection issue as I have a dyno tune scheduled for July 10th.
Hey, I haven't done a 99+ swap before but I did a quick search. See link below. Sounds like you are going in the right direction, just need to check and recheck the wiring.

Good Luck. If I was closer, I wouldn't mind stopping by and lending a helping hand.

https://ls1tech.com/forums/pcm-diagn...cm-99-pcm.html
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