Car bucking / not holding idle.
04-23-14, 12:15 PM
#1
Car bucking / not holding idle.
Stump on this.
95 - 2JZGE 5 speed Sc300
Car will almost died and engine bucks hard at low rpm until 3k rpm after getting off the clutch, sometimes died when coming to a stop. new 12v mod/new cap/rotor/sparks/alternator/wires/timing -10/change coolant temp sensor (when it holds idle)
The coolant temp gauge will spike to hot when I throttle but will drop back to normal after i let go immediately....(changed coolant temp sensor, same thing)
Today, its not even holding idle, it will crank, start and stall in a split second, but will hold idle if i hold throttle at 20ish%, but not smooth, some white smoke at 3-4k rpm.
Cleaned IACV, confirm no vaccum leak, there are sounds from fuel pump and fuel rail.
Also tested cold compression 150, 145, 150, 110, 150, 145.
Only different from stock item I have is a AEM 320LPH pump as the car was GTE swapped before.
Can this be a clogged fuel filter, bad ecu, bad maf or bad tps?
95 - 2JZGE 5 speed Sc300
Car will almost died and engine bucks hard at low rpm until 3k rpm after getting off the clutch, sometimes died when coming to a stop. new 12v mod/new cap/rotor/sparks/alternator/wires/timing -10/change coolant temp sensor (when it holds idle)
The coolant temp gauge will spike to hot when I throttle but will drop back to normal after i let go immediately....(changed coolant temp sensor, same thing)
Today, its not even holding idle, it will crank, start and stall in a split second, but will hold idle if i hold throttle at 20ish%, but not smooth, some white smoke at 3-4k rpm.
Cleaned IACV, confirm no vaccum leak, there are sounds from fuel pump and fuel rail.
Also tested cold compression 150, 145, 150, 110, 150, 145.
Only different from stock item I have is a AEM 320LPH pump as the car was GTE swapped before.
Can this be a clogged fuel filter, bad ecu, bad maf or bad tps?
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