OBD2 Trip Drive Cycle

[wxseed]

I reset the CEL after cleaning the MAF to clear P1128 and P1130 with my OBD2 scanner. It worked and the CEL is now out. Now when I run the scanner I don't get any DTC's, but 4 of the I/M readiness monitors are flashing. Do I need to run the OBD 2 Drive cycle to reset them? If so, where can I get the drive cycle process.

Thanks in advance.

[Loren]

Nope - you just need to drive the car until they are all happy faces. Sometimes this takes about about a week of normal driving.

I think that process is in there so you can't cheat on an emissions test.

[wxseed]

Thanks for the quick reply Loren. much appreciated

[wxseed]

I have one other question maybe someone could answer. If I hadn't erased the code from the car with the OBDII would the CEL have cleared itself after a number of trips? or is the only way to clear the CEL by using the OBD II?

Thanks

2001 C4

114,000km

Canadian car

[Loren]

In many cases yes, but in some cases no. It will depend on the fault and wheter the test the caused the fault re-occurs or not.