11-03-2013, 04:44 AM
hello bud.
welcome.
please post car spec. and we dont need to guess, nor buy 3 ECU.s not ever,
we can do some very simple tests, on a TBI car is even easier, 4 injector cars can be much harder, 3 more injectors to messup 5 ways from sunday.
first the year, car.
there are many generations, and year is #1
there are just 3 test to get on track.
1: compression, if 150 PSI , WOT x4 then the belt did NOT slip or strip. the belt must be changed at 60k or its doom city. (found on road dead).. a $20 tool.
2: no spark (or tacho dead) keep in mind, the ECU can not see real spark (30,000 volts) it only sees the tacho signal if dead, the ECU cuts fuel all time or after 3 seconds.
the test spark plug is near free. check spark at all 5 places, up to 1995 or 4 , starting in 1996.
3: bad fueling. (too much , none or too little) spark plug tips, wet/dry( injector squirting or not?)
if TBI car, you can watch live injections. with EYEBALLS. at any time.
please post year car. and displacement if not 1.6L and if 4wd. (or if it has a tachometer in the dash as all 4wd have)
welcome.
please post car spec. and we dont need to guess, nor buy 3 ECU.s not ever,
we can do some very simple tests, on a TBI car is even easier, 4 injector cars can be much harder, 3 more injectors to messup 5 ways from sunday.
first the year, car.
there are many generations, and year is #1
there are just 3 test to get on track.
1: compression, if 150 PSI , WOT x4 then the belt did NOT slip or strip. the belt must be changed at 60k or its doom city. (found on road dead).. a $20 tool.
2: no spark (or tacho dead) keep in mind, the ECU can not see real spark (30,000 volts) it only sees the tacho signal if dead, the ECU cuts fuel all time or after 3 seconds.
the test spark plug is near free. check spark at all 5 places, up to 1995 or 4 , starting in 1996.
3: bad fueling. (too much , none or too little) spark plug tips, wet/dry( injector squirting or not?)
if TBI car, you can watch live injections. with EYEBALLS. at any time.
please post year car. and displacement if not 1.6L and if 4wd. (or if it has a tachometer in the dash as all 4wd have)
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