So yesterday while working on my IS300, (radiator/clean throttle body and maf).. I decided to clean my MAF on the SC400. I cleaned it with the correct CRC MAF cleaner, I put it back in and started it up and the CEL came on. I thought it came on because I didnt unplug the battery to reset ecu. I did that to the IS300 and no codes came on. The code was on and after warmed up it had a up and down idle +/- 100rpms.

Well, today I decided to re-do it and this time disconnect battery so it would reset the ECU...still... CEL came on again!

I read some folks just wait a couple days til the ecu readjust itself and it went away... is that possible? Does autozone still offer free code scanning for OBDI? (1994)

 

....yea the maf's in the order sc's aren't supposed to be cleaned..so more then likely you killed it you can pull the cel code by jumping te1 and e1 in the diagnostic port under the hood

 

Does this work for 1994? I read somewhere on the forums there are OBD, OBDI, OBDII.

Also, is there a write up on this? I don't want to mess anything up, I couldn't find one either except for a 95/96.