Multiple Computer Codes - 2002 Ford F150 4.2L Engine - Ford Forums

searcherrr · 11-13-2009, 18:20

2002 Ford F150 4.2L Engine

The OD light is blinking as well and the CEL is of course ON.

Doesn't all that showing up at once indicate that the main engine computer (ECU, ECM, PCM, etc..) is probably fried?

Have any of you seen all these codes on your truck and it was the computer or was it actually ALL or 1 of these items?

I have recommended he try a new used computer. What ya'll think?

Curiously enough the shop told him that his catalytic converters were bad (2 shops said that), but that really was quite unbelievable to me. He has about 140k miles on it too.

**rtg143** · 11-13-2009, 18:31

Since they are written down, I'd clear the codes and run a KOEO and then a KOER to see if any show up again, The O2 heaters have to work for the fuel to trim properly. See what codes show up after clearing them. Sometimes one will trigger others.

**chipset** · 11-21-2009, 18:09

You have one of those cheap $100.00 code readers. Get one that does a live data stream or send it out to a qualified person and shop that knows what they are doing.
Fault 1461-1409-1747-1131-1336-1151 do not apply to your vehical. PO750-755-743 are all related. You have more than one problem. If you get code 111 there is nothing wrong with your ECM. I'd be looking at po340. Good luck