Question about Cars & Trucks
You never said what reset means.
the CEL is not out , driving?
scan tool attached , the 13 or so monitors have yet to complete>?
to pass immision. (at the very least)
1: CEL lamp in dash (or SES) must be on key on. not started
2: the CEL must go out and stay out running, if not fix the problem.
3: the monitors must be complete. (takes a scan tool to see that)
here are some hints
keep the gas tank below 3/4 full so the EVAP monitor can finish.
drive faster than 45mph on a hot engine.
the engine coolant temperature must be 180F or more and HOLD !
if in canada, say so, as the rules are different.
Posted on Oct 12, 2013
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Posted on Jan 02, 2017
SOURCE: Emission system problem
fill your muffler with SOS pads just before your test a wire coat hanger can remove them after the fact..
good luck its how i got my prelude to pass inspection in vancouver bc canada
Posted on Jan 16, 2009
Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.
Posted on May 28, 2009
you replaced them with new ? you need to take the battery cable off for 5 minutes then drive it so the computer can relearn the codes at 5 miles
Posted on Aug 20, 2009
SOURCE: po420 haunting me 03 jetta 1.8t
po420 is a generic obdii code which is cat converter sys - efficiency below threshold bank 1, which on vw's, should get oem code to fix right, does engine run rough?
Posted on Feb 04, 2010
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