I got the car scanned this morning, here are some of the result(lost the log)
(BEFORE RESETING THE PCM)
- MAF sensor "ok"
-KR "0" ( 0.94was the higheri saw)
-couple of misfire cylinder 2-3-4
-long term fuel... -25 or -22
-short term.. -22 or -25
thats what i remember.
(AFTER RESETING THE PCM)
-MAF sensor "ok"
-misfire "not at all"
-long term fuel
-short term fuel...__ at 40% throttle its fine 0 and -12 and -20\-19 at cruising.
-Spark advance___ " 7 at low throttle 30-33 at idle and 7-8 at WOT and then black smoke"
(o2 sensor testing was not available on the test.)
it seem like that my spark (or spark advance) fall when i touch the throttle , even a small push. i keep spark over 30 at idle and go down to 7-13 when accelerating, at WOT the spark cant take all that fuel and then a black smoke come off my tips.
From the scan, everything is fine except the spark, and only the o2 sensor test was not available (in the possible failure) and the crankshaft.
Can a bad o2 sensor can make the PCM drop the spark??
at idle am ok, but not on throttle.
I hope its just the o2 sensor and not the cranshaft sensor, or i will say goodbye to my 1.9 rocker
Anybody have an idea on what can drop the spark that low?
note: A big thank you to Foghorn and his friend Jerry for scanning the car.
EDIT: I just called a place, i can have one o2 sensor today, but its an NGK universal one, is it good enought?