I cannot find the engine computer. Please help.

What are the OBD codes?

If you know for a fact the cooling fan is why the engine overheats, you would test the relay and the signal from the computer.
The relay gets power from the battery circuit and the key switch, and a ground signal from the computer when the fan is needed.
The engine temp sensor tells the computer how hot the engine is, and when it reaches 220 degrees the computer grounds the relay providing power to the fan motor.
You would need a meter or a test light and the wiring diagram for the circuit to find the problem.

The cam sensor is supplied a reference voltage by the engine computer and the cam sensor should generate a signal back to the engine computer above 50 rpm of the engine cranking. The problem could be a faulty purchased cam sensor (yes this happens sometimes although rare) fwiring connector problem at cam sensor or faulty engine computer.

the injectors are controlled by the computer that gets signals from sensors. check sensors first, all of them on the engine and then, if no problem found, have your computer check by repair shop

please email me at [email protected] I can help you, but their are two sensors to speak of one for computer and another for engine. Which one needs replaced? the engine is threaded into hose assembly is for HVAC temp and flat plate plastic box for engine I will imagine you need the small plastic box for the computer i can help you with picture aids for install if you need

Hello Charles: My name is Roger and I Will help. The PCM is located behind the glove box on top of the heater case. The VCM is located under the hood just above the ABS unit. Should you need further help please just ask. Please rate the answer you received. This way I know the answer was helpful. Thank You for using Fix Ya. Roger

The only way to find out why it is on is to have an obd2 scanner hooked up to have engine codes read. This will pinpoint exact problem area. Many part stores will do it for free. Shops charge about $40. Well worth it.

they shift interlock is not releasing...possible cause a blown fuse or bad brake light switch.if you need to get it out of park to get to a dealer ther is a manual release..look for a small opening around the shifter...once you start the vehicle push a phillip screw driver through the opening and push the release...pull into gear.....do not use this release constantly it can cause computer problems

most common thing for this is either a failed coolant temp sensor that is not telling the computer that the car is warmed up and it is still running at cold Idle speed adn the code will tell you that.
Or a vacuum leak and the computer is trying to make up for the leak my making changes to the fuel deliery to keep the engine running .
If you find this information helpful please give me a fixya! Rating and if you need more help on this problem please contact me.

The only way to find out what code is stored in the computer and what turned the check engine light on is with an OBDII scan tool and also the only way to turn off the light but just turning off gthe light does not fix the problem, as soon as the computer does it checks again and you have completed the predetermined dive cycles the light will return so the only way to keep the light off is to properly repair the reason it was commanded on in the first place!

the engines are different model engines since they run off the computer im thinking that you need to set the computer to the 9.3 since the specs run the 9-5 at different frequency the enigine modules still think its a 9-5 in which you want the computer to run it at 9-3 this gives the high throttle reving

you need a laptop and your cars software to set the idle control for vehicle and possibily the proper idle control module for engine