94 toyotq celica gt wont start

Sounds like you need to have your alternator checked.

Have you replaced the timing belthis could be the cause.

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ive had the same prob and i have changed the feul filter and nothing has happen and im bout to change the feulpump

Sounds like a broken wire probably close to where the computer is. I would inspect the harness here and then under and around the power distribution module (fuse and relay box under the hood) This can be removed for closer inspection of the contacts underneath.

Check all sensor connections especially the crank


Pull the MAP sensor plug connector out and try to start the car, if it starts and runs rough and then wont when the map is plugged in then replace it and you are a go.
I think this is your problem or fuel pump or the fuel pump wire is corroded typically where it connects to the harness and then goes into the body.
This is somewhere to start at least.

You can try this.
Turn on the key and listen for the fuel pump to prime.
It will sound like a gentle hum. when it stops, turn the key off. wait a few seconds and do it again. Do this three or four times, but don't try to start it. after the third or fourth time you turn it off, try to start it. It may not be priming the fuel injectors fast enough.

Hello...

I would start, since it is cold outside by checking to make sure the battery is in good shape. If it is not, it will run but when the cold comes it will eventually not turn over. Note: Turning on the lights to see if they are bright is not a good check for the batteries abilty to crank the car. If you have a Checker or Autozone or other auto parts store see if they can test your battery for you.

With the sudden stop starting I would also suspect possibly the fuel pump or the pump relay.

Good Luck...

Mike

Check the idling if it is erratic. It may be a dirty fast idle control valve or leaking vacuum hoses.

Crank sensor or module. Check fuel pressure too.

get a can of BG TRANS FLUSH you will find at a auto part store put it in, drive it for about 20 min take it home change the fluid and filter and try that if problem still accurs after that your going to need a rebuild.