scout1963
NAXJA Forum User
- Location
- Rio Rancho, NM
I am Stumped. I have a 1996 xj with a 4.0L AT. I have had it only a few months. On the drive home it would cut out at 2500 to 3000 rpm, like it is hitting the rev limiter. While in neurtral or park engine runs good, it will hit the rev limit at 5600 or where ever that limit is. Seem to have plenty of power up until that 3000rpm point. Has not thrown any codes. I checked "check engine light" lamp...is good. problem is very consistent
What i have replaced with new:
Wire set, spark plugs, cap, rotor, Complete distributer with cam sensor, igintion coil, fuel filter, negitive battery cable, positive cable end, battery
What i have checked with a friends xj(part swapping):
MAP sensor, TPS, Crank sensor, complete computer.
Other checks I have done
1.Fuel pressure is 45 psi at rail. Stays at 45psi even during cutting out.
2.Good grounds: Batt to chassis ground=0.01 ohms. batt to engine ground=0.02ohms
3.MAP sensor 5.1v input, pin 1-3=5.1v
4.Crank sensor 5.1v input 4.3ohms
5.TPS 0.9v sweep to 4.2v WOT
Please help with any info or more tests I can run.
Thanks in advance.:helpme:
What i have replaced with new:
Wire set, spark plugs, cap, rotor, Complete distributer with cam sensor, igintion coil, fuel filter, negitive battery cable, positive cable end, battery
What i have checked with a friends xj(part swapping):
MAP sensor, TPS, Crank sensor, complete computer.
Other checks I have done
1.Fuel pressure is 45 psi at rail. Stays at 45psi even during cutting out.
2.Good grounds: Batt to chassis ground=0.01 ohms. batt to engine ground=0.02ohms
3.MAP sensor 5.1v input, pin 1-3=5.1v
4.Crank sensor 5.1v input 4.3ohms
5.TPS 0.9v sweep to 4.2v WOT
Please help with any info or more tests I can run.
Thanks in advance.:helpme: