Join Date: Jun 2004
Location: Southern California
PCM, FlagshipOne, P0203, etc.
I'll try to be as concise as possible. On a trail my engine began missing and I threw a P0202 and P0203 code. It turned out the #3 injector wires were bare and grounding out on the throttle cable bracket. Long story short, I got it home and repaired #2 and #3 injector wiring. #3 got a new injector plug pigtail. I still had the P0203 code and it was still missing horribly. Fuel was still pouring out the exhaust (Justified exaggeration). A mechanic and I isolated the issue back to the PCM. My PCM did not fire a noid light on #3, while a substitute PCM did.
That begins my business with FlagshipOne. Agreed to purchase a rebuilt PCM from them for about $450. They did not have one as it turned out and they offered to repair mine for $250 if I sent it to them. They had me fill out a form stating the issues and any troubleshooting and repairs. I ended up sending my PCM to them three times. The first two times they failed to fix the issue. I called them and politely complained that I had sent it in two times without the issue being fixed, and that I wasn't told the work done or anything they identified as an issue. I then sent it in for the third time. This time it came back with a work summary and the Jeep runs great.
I was told that FlagshipOne outsources their work. I was told it was more like a phone bank. I know they have honored the lifetime warranty flawlessly and have payed every time for the reshipping. I myself paid for protective packaging. When I alerted them to my complaint. I got results.
Although it runs fantastic now, I'm still throwing the P0203 code. Monday I'm going to take it to a mechanic to see what they can find out.
Side issue...my oil pressure gauge has been fluctuating intermittently. I changed the sensor via a dealer sourced part and it's still doing it.
Again, I fault Jeep for these headaches. I was told by sources it's too confusing and costly to sell PCMs. My 2004 TJ model alone has two possible part numbers as replacements. Multiply that by other years and models. Add to that the Jeep simply moves on to different owners and products. They simply don't care it seems. As and example, the 2005 and 2006 models have their own unique issues with the TCM. Their PCM moves to a four plug harness. Pick'n Jeep!!!!
I suggest a company called Wranglerfix, but their bragging rights are more with the 2005 and 2006 TJ's PCM and TCM issues.
It doesn't matter who you are until you are whom you are supposed to be.
Last edited by Norminator; 11-22-2019 at 05:17 PM.