10-26-2017, 12:45 AM
TELL MORE.
tell how it drives in all gears, all hills./ flat ground, acceleration, tip in of throttle , bogs? (hot)
what is seen felt, heard ?
Misfire is violent, heard and felt. and seen. (3 ways to know its there)
misfire is black smoke seen at tail pipe. (or red hot stinking(sniff sniff bad CAT, i bet yours is dead cat, no problems there if not melted)
and smells of unburned fuel.
Misfire is mostly bad spark, but not always, that is because any engine that is too rich will misfire, due to spark plug tips turned black in carbon, and carbon , is super conductor to 15,000 volt spark. carbpn shorts the plugs out. (ending spark)
ever look at the plugs, and gap that to .028" see if any are BLACK?, if one is black then you lose, 1/4 your power (actual more)
there are vast symptoms as shop sees test driving any car.
heard, felt and seen. (yes even see the TACHO drop is big clue ) or engine seen to shake at idle, or gear shift handle shakes oddly driver, flat or up hills.
keep in mine the mech must be smarter than the ECU, as it is brick dumb this year.
the engine has 4 cylinders, and only one injector
it fires in 1,3,4,2 order and repeats. it makes a sequential of Putts. in that order, and does not skip cylinders ever, if it does, heard/seen or felt that is what MISFIRE MEANS
it means one or more cylinders was dead at the spark instant, and most times repeats. All gas engines sound smooth and even clean putts, if not it's misfiring.
the is also called bad combustion.
key elements (EFI basics) are:
1: compression must be good 160psi not 80
2: the spark must be strong, timed right and gapped at .028"
3: the fuel mix must not be rich, too rich will cause too rich misfire, and bad combustion. 14.7 :1 is normal AFR if to rich now remove the 02 sensors ,like I showed above.
AFR ,means air fuel ratio,
it takes tools to fix or diagnose any car, made.
lacking ,this, all you can do , my guess is use spark tips reading checks. eyes on tips of plugs. (white/lt gray /tan, black, carbon /antifreeze soaked, broken damage there)
tell how it drives in all gears, all hills./ flat ground, acceleration, tip in of throttle , bogs? (hot)
what is seen felt, heard ?
Misfire is violent, heard and felt. and seen. (3 ways to know its there)
misfire is black smoke seen at tail pipe. (or red hot stinking(sniff sniff bad CAT, i bet yours is dead cat, no problems there if not melted)
and smells of unburned fuel.
Misfire is mostly bad spark, but not always, that is because any engine that is too rich will misfire, due to spark plug tips turned black in carbon, and carbon , is super conductor to 15,000 volt spark. carbpn shorts the plugs out. (ending spark)
ever look at the plugs, and gap that to .028" see if any are BLACK?, if one is black then you lose, 1/4 your power (actual more)
there are vast symptoms as shop sees test driving any car.
heard, felt and seen. (yes even see the TACHO drop is big clue ) or engine seen to shake at idle, or gear shift handle shakes oddly driver, flat or up hills.
keep in mine the mech must be smarter than the ECU, as it is brick dumb this year.
the engine has 4 cylinders, and only one injector
it fires in 1,3,4,2 order and repeats. it makes a sequential of Putts. in that order, and does not skip cylinders ever, if it does, heard/seen or felt that is what MISFIRE MEANS
it means one or more cylinders was dead at the spark instant, and most times repeats. All gas engines sound smooth and even clean putts, if not it's misfiring.
the is also called bad combustion.
key elements (EFI basics) are:
1: compression must be good 160psi not 80
2: the spark must be strong, timed right and gapped at .028"
3: the fuel mix must not be rich, too rich will cause too rich misfire, and bad combustion. 14.7 :1 is normal AFR if to rich now remove the 02 sensors ,like I showed above.
AFR ,means air fuel ratio,
it takes tools to fix or diagnose any car, made.
lacking ,this, all you can do , my guess is use spark tips reading checks. eyes on tips of plugs. (white/lt gray /tan, black, carbon /antifreeze soaked, broken damage there)
http://www.fixkick.com