Hello,
I'm Mat, im from Poland and I have a problem with my Jeep Cherokee XJ 4.0 1990, renix.
It's on 31 inch tires and 3 inch lift and i have like 16 seconds for 0-60mph, it's hard to pass 75mph, and 85 mph is impossible to reach, and with normal driving on the streets i get about ~7 mpg. Highway cruising gives me 9mpg.
I have replaced O2 sensor, TPS sensor, MAP sensor, engine timing chain and sprockets, distributor cap, spark plugs, wires, ignition coil (all brand new), and i tried new ignition module (got used one from an old renault).
I have checked temperature sensors (engine coolant and air temperature), and CPS they are fine.
I have checked my timing with a strobe lamp (with regulation) and its about 52 degrees advanced. No matter what i do with a distributor, or any other thing its always on 52~degrees. I tried to set a distributor in other position but it doesnt change anything, jeep starts but its still about 50 degrees advanced.
I order complete new distributor and CPS sensor but i need to wait 2 to 4 weeks till it will arrive from US, because its impossible to get one in Poland, but im not sure if it can help....
Im running out of ideas and my jeep still isn't working as i would like.
I'm Mat, im from Poland and I have a problem with my Jeep Cherokee XJ 4.0 1990, renix.
It's on 31 inch tires and 3 inch lift and i have like 16 seconds for 0-60mph, it's hard to pass 75mph, and 85 mph is impossible to reach, and with normal driving on the streets i get about ~7 mpg. Highway cruising gives me 9mpg.
I have replaced O2 sensor, TPS sensor, MAP sensor, engine timing chain and sprockets, distributor cap, spark plugs, wires, ignition coil (all brand new), and i tried new ignition module (got used one from an old renault).
I have checked temperature sensors (engine coolant and air temperature), and CPS they are fine.
I have checked my timing with a strobe lamp (with regulation) and its about 52 degrees advanced. No matter what i do with a distributor, or any other thing its always on 52~degrees. I tried to set a distributor in other position but it doesnt change anything, jeep starts but its still about 50 degrees advanced.
I order complete new distributor and CPS sensor but i need to wait 2 to 4 weeks till it will arrive from US, because its impossible to get one in Poland, but im not sure if it can help....
Im running out of ideas and my jeep still isn't working as i would like.