OK folks, I have a rather strange problem that I could use some advise on.
Background:
Just purchased a '33 Willys Coupe with a 5.0 5 speed allegedly sourced from an '89 Mustang GT. It runs and drives but was reported as being "down on power" by the previous owner. The PO inherited the car from his deceased father and knows little of its history. It seems to start and idle OK but did fail to start once after warming to operating condition. Transport driver gave it a shot of starting fluid which caused it to catch and it ran fine. It appears to have a stock 5.0 engine with the exception of a Cartech upper intake, and the elimination of all emission equipment. I put an OBD1 code reader on it this afternoon and it logged the following codes: 21,31,81,82,85 and 84 engine off. Engine running it gave 6 (isn't this supposed to be number the of cylinders???), 21, 41,31. So I am attributing everything except codes 21 and 41 to the removed emission equipment. I made sure the engine got up to temp and the code 21 remained. I measured the ECT resistance at 1.5 Maga Ohms.
Thoughts on what I have? Did someone replace a failed ECU with a 6 cylinder one? Would it even run? Oh one more weird thing, the code reader didn't go into stored code mode after the engine off test, just repeated the original codes and then stopped. Never got a code 10 indicating a switch.
Any guidance greatly appreciated.
Background:
Just purchased a '33 Willys Coupe with a 5.0 5 speed allegedly sourced from an '89 Mustang GT. It runs and drives but was reported as being "down on power" by the previous owner. The PO inherited the car from his deceased father and knows little of its history. It seems to start and idle OK but did fail to start once after warming to operating condition. Transport driver gave it a shot of starting fluid which caused it to catch and it ran fine. It appears to have a stock 5.0 engine with the exception of a Cartech upper intake, and the elimination of all emission equipment. I put an OBD1 code reader on it this afternoon and it logged the following codes: 21,31,81,82,85 and 84 engine off. Engine running it gave 6 (isn't this supposed to be number the of cylinders???), 21, 41,31. So I am attributing everything except codes 21 and 41 to the removed emission equipment. I made sure the engine got up to temp and the code 21 remained. I measured the ECT resistance at 1.5 Maga Ohms.
Thoughts on what I have? Did someone replace a failed ECU with a 6 cylinder one? Would it even run? Oh one more weird thing, the code reader didn't go into stored code mode after the engine off test, just repeated the original codes and then stopped. Never got a code 10 indicating a switch.
Any guidance greatly appreciated.