Wheel speed sensor replacement for ecu
Is this a question?
my guess is you have brake errors.
and ABS errors and did not post them.
the ABS can infact be scanned, do so first.
or inspect the sensor that fails but first first is the brake inspection
as no ABS works RIGHT, in the world with bad brakes,
look at he failing sensor with eyes, is it damaged, or dirty. (in details)
SOURCE: 2000 jeep cherokee starts then stalls in approx 3 sec 4.0 has new crank sensor
I am going to assume that it will not run even if you push on the accelerator pedal?
Can you install or attach an old timing light to the spark plug wires, turn it one and try to start it. The light should flash with the engine running, but if it shuts off at time of engine die, and the engine is still spinning, you are losing spark, My suggestion is the cranks shaft sensor on bell housing.
Second, install a pressure gage on the test port on the fuel rail and watch it as you start the engine, fuel pressure should not drop as the engine dies, if it does, the pump is not working correctly. There are two modes of power to that pump, one to start and timed, for only a few seconds to prime the system, and one to run continuously. Find the wires going to the pump at the tank. Connect test light to those wires and watch what happens during crank and at stall, You should not have the pump shut off and the engine dies.
If you have spark, and fuel pump working, when did you last change the filter,,but I put that LAST.
It has to be one or the other of these.
Good Luck
SOURCE: 1992 jeep cherokee 4.0engine stall problem after 3 to 5 seconds
replace the fuel pump $300-500
SOURCE: Speed Sensor - Engine Light - 1998 Jeep Grand Cherokee 5.2
The problem is AutoZone. Stay away from that place. I once worked there and was amazed by the number of returns. They sell low quality parts, most of them rebuilt and listed as new.
The best of the low end parts dealers would be KOI, NAPA, and Carquest. All others blow chunks. Else, just go to the dealer.
Check the wiring going to the coil. If you installed an alarm on that vehicle disconnect the main power wire to the alarm to disable the ignition kill circuit. Locate the ignition relay located on the drivers side fender wall or in the power distribution box under the hood and test it. finally, there is a fuse on the interior fuse panel that will give you this condition. I do not have the exact location so check all fuses in the panel and replace any blown fuses.
SOURCE: I have 1994 jeep wrangler 4.0 inline 6 5 speed,
Hello
I see that you have replaced allot of parts that can cause this crank no start condition but you have not performed any fault code testing or at least you didn't mention you did. To obtain instructions on how to perform a OBD1 fault code test using the Check Engine light "BLINK" method click HERE Also you have not mentioned any testing of the Camshaft Position sensor, it is located inside the distributor, that may be the problem. The ICM (ignition control module) is part of the ECM (computer) and so if that is the problem you must replace the computer. Another thing have you actually confirmed the no spark, or are you just assuming, if so please test the fuel pressure, the test port is on the top of the engine, it looks like a true valve in the pipe that feeds fuel to the injectors.
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