OBD1 D16z6, OEM P28 ecu.
Car has been running great for the past 3 months with no CEL issues.

I was going down the road after being on the interstate for about 15 minutes and my car gives me a CEL. I flip my switch and it throws about 5 different codes.
6, 10, 20, 22, 41.
Car is still driving normal, no power loss to speak of, and no skipping or anything weird. I pull over and pull the ecu fuse. I checked all ground and all are in tact, especially the thermostat housing ground.

Now it is only throwing a code 41. I replaced the o2 with a known working o2 from my friends car and it is still throwing the code. I checked my wiring and there are no issues with it.

What could it be?

 

Could be bad ecu. Grab yourself a 5 dollar 02 simulator, wire that bad boy in and see if the CEL clears.

 

Any link to a o2 simulator? havnt seen one before.

 

its a resistor or diode,i think

 

my code 41 when i had it was in my distributor. the little icm inside the distributor. If u can just get another distributer

 

http://www.corpusracing.com/communit...-you-will-need

 

you should try googleing soome times -----41 is o2 sesor heater...all it does is warm the o2 sensor on cold start...just repace the o2 if u dnt see any broken wiring

 

Read.

"I replaced the o2 with a known working o2 from my friends car and it is still throwing the code. I checked my wiring and there are no issues with it."

 

This place should have some..
http://www.casperselectronics.com/store2/

 

Did you change it and reset the ecu properly?

 

I pulled (-) terminal off of the battery for about 10 hours. I suppose thats proper.