Good maf not it, and most cause true bogging and lean when bad, or weak or just dirty, (under reports air)
goes to 3k easy driving or parked.?
its missing , the 1996 would dump error DTC P0300 or ending in 1,2,3,5
all 4 plugs turn black or only 1? We need to look at all 4, this car is not 1996 with OBD2, so, looking
are the spark wires new (cap and rotor) did the distibutor fill with water,? inside,cap off, dust cape off, see inside, any crap inside? deep?
This car must be spark timed , unlike modern cars with timing locked perfect with CKP on flywheel.
I say this only because water flooding implies to me lots of work,, even removing the distributor and just putting it back guessing.
Ok vacuum good, and compression and cat not melted. nice work !!!!
so is spark. it's misfiring badly. only why remains.
misfiring is violent, so violent the 1996 can detect it easy OBD2 misfire monitor does. but you have no such ECU.(PCM)
the misfire is real and all misfiring causes engine power lost, even 50% loss easy.
spark is first, wires/cap/rotor and timed. firing order 1,3,4,2 , do not read the GM books showing the rotor turning wrong, (error gm)
car has spark coil the tower can carbon track and wreck it (dirt + water turns to carbon and tracks and leaks HV big time)
the rotor on these cars, need real rotor not that silly china junk rotor that fits on 3 ways!, (bosch and NGK fit) then on wrong plugs crossfire real bad.
even a rotor not fully seated, 100% will be a horror. (i bet all this is ok by you; spark parts right)
if the spark parts are all new, and spark timing not set way off (timing freeze jumper methods)
the I say fuel pressure is wrong;
what if water got into the FPR>? the flood waters did not go inside the tank unless gas cap was off or loose. EVAP system is sealed.
does the Car run great with the gas cap removed? (wrong cap if yes)
the FPR. I and unsure if water can go inside it if engine under water, i dont think any FPR cant flood water inside, the vacuum side is sead to vacuum only)
If all 4 cylinder burn black,(spark tips) check fuel pressure if spark timing is correct. next. below.
fuel pressures wrong is this mostly.\
![[Image: fpreg-16v.jpg]](http://www.fixkick.com/actuators/fpreg-16v.jpg)
if the fuel pressure lands on 40 or 50 PSI the engine will burn black smoke full time. i test mine at 3 data points
keyon, idle and then use vacuum tool and test 26" inches of HG vacuum at the nipple for 21PSI. 3 data points. will most times catch this failing.
I presume you calibrated the TPS if not that does cause, flat spot , just off idle right foot but will not kill ever WOT FULL POWER>
it cause hesitation only. then catches up fast and full hog power. done wrong.
cheers to you !
goes to 3k easy driving or parked.?
its missing , the 1996 would dump error DTC P0300 or ending in 1,2,3,5
all 4 plugs turn black or only 1? We need to look at all 4, this car is not 1996 with OBD2, so, looking
are the spark wires new (cap and rotor) did the distibutor fill with water,? inside,cap off, dust cape off, see inside, any crap inside? deep?
This car must be spark timed , unlike modern cars with timing locked perfect with CKP on flywheel.
I say this only because water flooding implies to me lots of work,, even removing the distributor and just putting it back guessing.
Ok vacuum good, and compression and cat not melted. nice work !!!!
so is spark. it's misfiring badly. only why remains.
misfiring is violent, so violent the 1996 can detect it easy OBD2 misfire monitor does. but you have no such ECU.(PCM)
the misfire is real and all misfiring causes engine power lost, even 50% loss easy.
spark is first, wires/cap/rotor and timed. firing order 1,3,4,2 , do not read the GM books showing the rotor turning wrong, (error gm)
car has spark coil the tower can carbon track and wreck it (dirt + water turns to carbon and tracks and leaks HV big time)
the rotor on these cars, need real rotor not that silly china junk rotor that fits on 3 ways!, (bosch and NGK fit) then on wrong plugs crossfire real bad.
even a rotor not fully seated, 100% will be a horror. (i bet all this is ok by you; spark parts right)
if the spark parts are all new, and spark timing not set way off (timing freeze jumper methods)
the I say fuel pressure is wrong;
what if water got into the FPR>? the flood waters did not go inside the tank unless gas cap was off or loose. EVAP system is sealed.
does the Car run great with the gas cap removed? (wrong cap if yes)
the FPR. I and unsure if water can go inside it if engine under water, i dont think any FPR cant flood water inside, the vacuum side is sead to vacuum only)
If all 4 cylinder burn black,(spark tips) check fuel pressure if spark timing is correct. next. below.
fuel pressures wrong is this mostly.\
if the fuel pressure lands on 40 or 50 PSI the engine will burn black smoke full time. i test mine at 3 data points
keyon, idle and then use vacuum tool and test 26" inches of HG vacuum at the nipple for 21PSI. 3 data points. will most times catch this failing.
I presume you calibrated the TPS if not that does cause, flat spot , just off idle right foot but will not kill ever WOT FULL POWER>
it cause hesitation only. then catches up fast and full hog power. done wrong.
cheers to you !
(12-02-2018, 06:39 AM)randyz71 Wrote: Maf was first thing I replaced, it was a Amazon Maf, I replaced before I read your maf test, I tested both Maf old and new and they read good, Brand new plugs but covered in black soot not oil fast. pressing gas pedal it goes to 3k (in neutral?) easy and will purr at 3k Rpm anymore and it just bogs, if hold to floor it almost dies then jumps to about 2k rpm for a instant then almost dies. idles fine for about 2 to 3 minutes, then idles high for a second then loads up idle low and lots of smoke. rev it up it cleans up but not over 3k. new TPS from Rock auto new bosch 15730 o2 sensor, vacuum test good, also ran it with o2 sensor un-installed to allow some breathing in front of cat but ran same. compression right at 190 psi cyl. 3 about 186. havent tested fuel rail pressure.(big need)
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