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I cant get the trouble codes, when I connect the jumper wire under the dash nothing happens. The check light doesn't blink at all. It runs o.k. at first but when it warms up it runs like ssh it. The

1994 chevy astro van new plugs and wires the light should show code 12. it just stay on no blink

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You may not have codes some problems dont cause trouble codes --bad catalyic converter --tune up needed--egr valve --fuel filter --fuel pump failure -to name a few

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The starter motor has two wires to it, a large battery cable and a small push on signal wire. Disconnect the small wire and use a jumper wire to jump from there, the starter to the large terminal. This should activate the starter motor and crank and if the ignition key is switched to run or on, the engine should start. If nothing happens, then the power and connections from the large starter wire to the battery should be checked. All electrical connections need to be clean and tight. If it starts, then the problem may be a clutch pedal switch or a neutral safety switch not making contact or in need of adjustment.

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Where is diagnostic connector locationon 1994 toyota base pickup


The check engine light is used to blink out the trouble codes. The diagnostic connector is usually under the hood on driver's side, back near the firewall. Sometimes under the driver's dash. Use a jumper wire and connect terminals TE1 and T1. Then turn key to on, not start, and the check engine light will blink out the trouble codes. If no codes are present, the check engine light will stay on constantly. Remove jumper wire when diagnostics completed. To clear codes after repairs, disconnect the negative battery terminal for one minute, and then reconnect.
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It means that there is a malfunction with the engine control system which is most likely related to the emission control system, the computer stores some diagnostic trouble codes that should be retrieved, the trouble code numbers will help to find where the problem may be. The way to get the trouble codes is by putting a jumper wire in the diagnostic connector under the hood between the terminals TE1 and E1 with the key on the check engine light will blink the code, for example a code 24 would be two blinks followed by four and so on. Once the codes are known you can reply back to me and I can help further.

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the flashing S light on your car is your tcu "transmission control unit" sending a trouble code to your dash this could mean alot of differant things if im not mistaken it will be an electrical problem not mechanical. is your speedometer just randomly jumping? the reason i ask is i drive a 91 as well and my S light is blinking and my speedometer jumps and sometimes doesnt work at all the the code for the S or tcu is 4 which is the vss "vehicle speed censor" eventually your check engine light will probably come on and if the code is 17 then its your vss as well but you can check the code by getting either a paper clip or small wire and using it as a jumper wire there is a little blue wiring harness on the passenger side of your car under the glove box use the paper clip or wire and plug them in "dont worry you wont get shocked ive done this plenty of times and in the rapair manual it tells you to do this" when you do this make sure the paper clip or wire is secure and put you key in the ignition and turn it to where your dash lights up but dont start the car the S light will start to blink count the blinks "1 long blink is 10, 1 small blink is 1" example if the light stays on for a couple of seconds and turns off and then blinks 4 times that would be code 14, if your check engine light blinks count that as well if you need help with checking any of it there is a video on you tube i believe the title is how do you check the check engine light on a 91 honda accord. or something of that nature. if you get the codes tell me what they are I may be able to find them and get more specific about what is goin on I hope this helps

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Have a 91 honda accord. experiencing dramtic hesitation when accelerating but check engine light comes on and problem dissapears. Once you stop for a short period of time check engine light goes off and...


Sounds like your O2 sensor is malfunctioning. When the check engine light comes on, the computer goes into a preset mode bypassing the O2 sensor and that's why it suddenly runs good. Have the O2 sensor checked. You can also have the trouble codes read and they should point you in the same direction.

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This is straight from Haynes Repair Manual for 1989-1997 Isuzu Amigo/Rodeo/Honda Passport (book # 47017:
The 12 pin Assembly Line Data Link (ALDAL) terminal is located under the dash on the driver's side on 3.1L engines. To retrieve the trouble codes, connect a jumper wire to terminals A and B. It may be covered with a plastic cover. They suggest using a paper clip to jumper the two terminals-then turn ignition switch to ON position (NOT ENGINE START). Check engine light on dash will flash-one flash-a pause-then two short flashes-indicating code 12-diagnostic mode. After self checking-if there are any trouble codes-the light will flash proper codes using mentioned method.Note the flash code then call a shop with your info for what ails your Rodeo.

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