Basically the car idles like ***** and the check engine light in on. In short 3 days ago while cruising about the car died as I stopped at a red light and the check engine light came on. It refused to fire up without a bit of feathering of the throttle as if it was flooded and it would run but not idle. The check engine light went out on my way home but came on again as I let the car idle in the garage before it quit. The next day I started the car and went for a very short drive without a problem but the check engine light did flash at me once briefly. Yesterday I started the car the check engine light was on right away and the idle was crap and it smells a bit rich.
Today I pulled the codes (KOEO) and got :hard fault 67, continuous memory fault 41, 66, 91, and 96.
From the book:
67 = neutral drive switch circuit failure, circuit open; or A/C input high whatever the hell that means?
41, 91 = HEGO sensor signal out of range - always lean
66 = mass airflow sensor fault - below minimum voltage
96 = fuel pump secondary circuit fault / high speed fuel pump relay open
Next I cleared the codes and disconnected the battery for a few minutes, reconnected the battery and started the car. Same poor idle and check engine light.
I pulled the codes again and got: hard fault 11, continuous memory fault 15 and 66.
11 = system OK (good news)
15 = power interuption to computer memory or EEC, keep alive memory test failed (sounds OK as I just had the battery disconnected)
66 = mass airflow sensor fault - below minimum voltage (same as before I cleared the codes)
I'm thinking the problem is with the MAF, I currently have a 75mm Bullet cal for 24#. I have had this meter for about 8 years and it has been back to Pro-M once for a recal (19 to 24#) about 2 years ago. Do these things just go bad? Is there any way to check the MAF? Does anybody have any thoughts on the other HEGO lean codes?
Jason
Today I pulled the codes (KOEO) and got :hard fault 67, continuous memory fault 41, 66, 91, and 96.
From the book:
67 = neutral drive switch circuit failure, circuit open; or A/C input high whatever the hell that means?
41, 91 = HEGO sensor signal out of range - always lean
66 = mass airflow sensor fault - below minimum voltage
96 = fuel pump secondary circuit fault / high speed fuel pump relay open
Next I cleared the codes and disconnected the battery for a few minutes, reconnected the battery and started the car. Same poor idle and check engine light.
I pulled the codes again and got: hard fault 11, continuous memory fault 15 and 66.
11 = system OK (good news)
15 = power interuption to computer memory or EEC, keep alive memory test failed (sounds OK as I just had the battery disconnected)
66 = mass airflow sensor fault - below minimum voltage (same as before I cleared the codes)
I'm thinking the problem is with the MAF, I currently have a 75mm Bullet cal for 24#. I have had this meter for about 8 years and it has been back to Pro-M once for a recal (19 to 24#) about 2 years ago. Do these things just go bad? Is there any way to check the MAF? Does anybody have any thoughts on the other HEGO lean codes?
Jason