Truck shut off

Mikey's250 · #1 Sun, September 26th, 2010, 12:07 AM

I have had my FU for about 3 months and not had any complaints, I love it. But about 2 weeks ago I had a no start issue. One morning truck just turned over but no start. I flipped the switch a couple times and tried to start again, finallly started on the 4th try and no problems until today. I was stopped at a red light and went to switch over from 80DD to 100perf (#3 to#4) and as soon as I the switch clicked the truck imediatley shut down. I switched back to 80DD(#3) and truck started no problem. Went on to where I was going and went through every position with no problem.

Anybody have any ideas if something is wrong or going wrong? or what caused my issues?

cj45lc · #2 Sun, September 26th, 2010, 09:09 AM

Wish I had a answer for you Mikey, sounds like the switch maybe. Hopefully someone will be along shortly with more experience with these.

Mikey's250 · #3 Mon, September 27th, 2010, 09:45 PM

Quote:

Originally Posted by cj45lc

Wish I had a answer for you Mikey, sounds like the switch maybe. Hopefully someone will be along shortly with more experience with these.

Thanks anyway though. Im sure somebody around here will know

Mikey's250 · #4 Wed, September 29th, 2010, 12:58 PM

Anybody out there?

Mikey's250 · #5 Wed, September 29th, 2010, 03:14 PM

Quote:

Originally Posted by Groovy Chick

I'll try to get Cody or Bill to jump in here.

Thank you Corey

***Power Hungry*** · #6 Wed, September 29th, 2010, 03:19 PM

Mike,

Most starting issues can be traced back to a poor connection between the chip and the PCM. With this in mind, here are some suggestions:

First question... Have you recently reprogrammed the chip and if so, did you program all 6 positions? There is occasionally an issue where if all the positions are not populated then there can be a no-start condition caused by the chip booting slower than the PCM. This condition is easily resolved by making sure all the positions are populated.

Next question... Is your PCM case (the large, black case around the PCM) "notched" to allow easy access to the chip slot or is the chip inside the case? If the case is intact, it may be pushing against the back of the chip and causing a connection issue, especially if you reinstalled the case with the original screws. In this situation, I'd recommend either notching the back of the case or removing the screws and using a small zip-tie to lightly hold the case in place. Either way will relieve the pressure on the chip and resolve the connection issue.

Finally, if the above situations do not apply then I'd simply recommend removing the chip, giving the PCM connector a quick brush with Scotch-Brite, and then reinstalling the chip.

Let me know if any of these help.

Take care.

Mikey's250 · #7 Thu, September 30th, 2010, 01:12 AM

Quote:

Originally Posted by Power Hungry

Mike,

Most starting issues can be traced back to a poor connection between the chip and the PCM. With this in mind, here are some suggestions:

First question... Have you recently reprogrammed the chip and if so, did you program all 6 positions? There is occasionally an issue where if all the positions are not populated then there can be a no-start condition caused by the chip booting slower than the PCM. This condition is easily resolved by making sure all the positions are populated.

Next question... Is your PCM case (the large, black case around the PCM) "notched" to allow easy access to the chip slot or is the chip inside the case? If the case is intact, it may be pushing against the back of the chip and causing a connection issue, especially if you reinstalled the case with the original screws. In this situation, I'd recommend either notching the back of the case or removing the screws and using a small zip-tie to lightly hold the case in place. Either way will relieve the pressure on the chip and resolve the connection issue.

Finally, if the above situations do not apply then I'd simply recommend removing the chip, giving the PCM connector a quick brush with Scotch-Brite, and then reinstalling the chip.

Let me know if any of these help.

Take care.

Thanks man. The chip hasnt moved since the 1st day with all 6 spots filled and I do have the case notched so , Ill try hitting it with the scotch brite this weekend. And like I said its not an everyday thing or something that has dissatisfied me jsut want to make sure its not a sign of something going out.
Again thanks and Ill post up if I have anymore issues after cleaning.

One more thing, can I hold PHP responsible for increased tire wear since installing the chip?