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First of putting your foot on the gas pedal does not help the situation. These cars, when adjust right can be started reaching through the window to turn the key! Read up on cleaning and adjusting the throttle body and eyeball the hose behind the AMM for any tiny holes or loose clamps. Make sure the throttle switch is connected up.
When it comes to the temperature sensors, there are two of them! The front one on the head is the instrument coolant gauge and the rear most hard one to get to is the computer one. It is called an ECT that adjusts the fuel mixture for a cold or hot engine.
Check for resistance change at the ECU behind the kick panel on the right of the passengers foot well. Disconnect it and check between ground and the wire. I think it's was pin two or twenty two, do research on that for your car. It's high ohms to low ohms, 2300 to low 100's or cold to hot engine.
Doing it this way rules out or in, if a bad wire or bad connection exists.
I would like to add a tidbit to the other posters post about the timing belt and the distributor. The rotor button should line up exactly to the line or notch and it has to be under the number one wire terminal. The timing belt may have the punch mark on that gear off its mark and he wants you to check that by looking at the rotor button.
Also I do not recommend using WD-40 a distributor cap. I would think that the residue will smut up the terminals and cause cross-firing in the long run. WD-40 has a good fragrance for a kerosene like, solvent.
Just use a dry rag or handkerchief. If you are getting moisture in there, replace it!
The terminals will go green and not in a good way. The corrosion can be scraped/ chipped or sanded off once or twice in a pinch but the gap gets larger, so again, a new cap is best, in the long run.
Do not dismiss the Bosch rotor button either as they do and will go bad internally along that blackish or gray strip! Both can be chosen to be the weakest link in high humidity situations.
Post back what you find by yourself, besides the extra money, in your wallet....(:).
Phil
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