So my limp mode saga continues. In early December, my newish-to-me 05LC100 with 156K threw a P2118 code and went into limp mode. The ETCS fuse was intact, so I towed it to my experienced cruiser mechanic. The wiring all seemed to check out, but the motor on the throttle body was giving bad readings so we replaced the throttle body.
After installing a new OEM throttle body, P2118 and limp mode returned. Suspecting a problem in the ECM, I shipped it off to G7 Computers for a repair. They reported finding a hardware problem in the ECM and repairing it.
So we plugged the newly repaired ECM back in, and no more P2118 code! The problem is when I tried to drive the cruiser away from the shop, it was still in limp mode (little response from accelerator/cap on RPMs at around 2000). This time, however, the CEL is NOT on.
So, the cruiser is stuck in limp mode but without any code. My mechanic has been able to get it out of limp mode by leaving the battery disconnected overnight, and taking it for a spin the next morning, but it will only travel about 1-2 miles before limp mode returning. It seems as if once the engine is warm, something triggers limp mode.
My mechanic has examined all the wiring again and everything looks good. We are not sure what is going on. He took at look at the transmission fluid and it is not a pretty color. Because of the relationship between transmissions and limp mode, we are going to go ahead and drop the pan, clean it out, and then exchange all the ATF with our fingers crossed that a happier transmission will solve the problem. But if that doesn't work, .
Anyone encountered anything like this? Limp mode but no code or CEL?
After installing a new OEM throttle body, P2118 and limp mode returned. Suspecting a problem in the ECM, I shipped it off to G7 Computers for a repair. They reported finding a hardware problem in the ECM and repairing it.
So we plugged the newly repaired ECM back in, and no more P2118 code! The problem is when I tried to drive the cruiser away from the shop, it was still in limp mode (little response from accelerator/cap on RPMs at around 2000). This time, however, the CEL is NOT on.
So, the cruiser is stuck in limp mode but without any code. My mechanic has been able to get it out of limp mode by leaving the battery disconnected overnight, and taking it for a spin the next morning, but it will only travel about 1-2 miles before limp mode returning. It seems as if once the engine is warm, something triggers limp mode.
My mechanic has examined all the wiring again and everything looks good. We are not sure what is going on. He took at look at the transmission fluid and it is not a pretty color. Because of the relationship between transmissions and limp mode, we are going to go ahead and drop the pan, clean it out, and then exchange all the ATF with our fingers crossed that a happier transmission will solve the problem. But if that doesn't work, .
Anyone encountered anything like this? Limp mode but no code or CEL?