OK, so I got the MM motor in and hooked up. The first start went fine and it fired up with no drama, although the idle was sort of lousy. I got a CEL, but it would clear if I gave it some gas. The motor was running on all cylinders and I got it warmed up enough to bleed the coolant.
That's all good, so I turned it off so I could check the engine fault code. It gave back 1222...O2 sensor. Well, I am running a wide band setup and it sat unpowered for 4 months, so MAYBE it needs to be re-programmed and re-calibratred. The only other thing in there that is different is my MAF conversion, which was tested on my sister's E36 318iS.
Anyway, I decided to take it out for a spin since it seemed to run fine, except at idle. I start it, and the engine dies about 1 second later. OK...I start it again, and it runs for about 1/2 a second and then dies. No drama, no sputtering, just turns off. If I give it gas, it will run, but it feels like it is on 3 cylinders / not very strong. Hmmph.
So, any ideas? Everything is good mechanically, and I am 99% sure that there ar eno vacuum leaks. The two items on my list to try first-thing are to re-calibrate the wide band O2 sensor, and to swap in the stock AFM. If it is not one of those two things though, I am at somewhat of a loss. Ideas? This isn't due to an accidentally connected plug up on the firewall either...what else could cause hot-start failure? I will check it in the morning since I am too tired and it is too dark to mess with right now.
Thanks guys!
That's all good, so I turned it off so I could check the engine fault code. It gave back 1222...O2 sensor. Well, I am running a wide band setup and it sat unpowered for 4 months, so MAYBE it needs to be re-programmed and re-calibratred. The only other thing in there that is different is my MAF conversion, which was tested on my sister's E36 318iS.
Anyway, I decided to take it out for a spin since it seemed to run fine, except at idle. I start it, and the engine dies about 1 second later. OK...I start it again, and it runs for about 1/2 a second and then dies. No drama, no sputtering, just turns off. If I give it gas, it will run, but it feels like it is on 3 cylinders / not very strong. Hmmph.
So, any ideas? Everything is good mechanically, and I am 99% sure that there ar eno vacuum leaks. The two items on my list to try first-thing are to re-calibrate the wide band O2 sensor, and to swap in the stock AFM. If it is not one of those two things though, I am at somewhat of a loss. Ideas? This isn't due to an accidentally connected plug up on the firewall either...what else could cause hot-start failure? I will check it in the morning since I am too tired and it is too dark to mess with right now.
Thanks guys!
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