Question about 1990 Honda Accord

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How do I test my map sensor on my 1990 honda accord

Its an f22a1, it turns over but will not start. It started and idled but only shortly when I sprayed starting fluid in the butterfly valve in the intake and then shut off... any helpful advise will be greatly appreciated

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  • thomas petty Apr 20, 2013

    I have the iac valve the distributor, plugs and wires all have spark. I have yet to check the fuel pump relay

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The map sensor would probably throw a code if it were bad. they do sometimes get gunked up and dont read the right air volume. you might want to check the fuel rail and injectors to make sure they aren't going bad on you. also fuel pump and filter and fuel line, you could have a kink.

Posted on Apr 20, 2013

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Posted on Jan 02, 2017

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dealt_soul
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SOURCE: 1990 honda accord engine surging

Check the throttle sensor and MASS air flow sensor. Throttle sensor cheap check first. MASS nice penny.

Posted on Jan 18, 2009

antn
  • 15 Answers

SOURCE: 1988 honda accord lxi- will start if I spray

Clogged fuel injectors. Or, starting fluid is basically high octane fuel which doesnt require efficient or hot spark plugs to start, so maybe you need to look at your ignition system, especially your spark plugs, wires, or cup rotors -- perhaps they are not delivering a hot enough spark for regular fuel. While at it, also check the ignition timing. In other words, clean your injectors and get a tune up. Finally, make sure the throttle body is not leaking air. 

Posted on Jun 11, 2009

  • 35 Answers

SOURCE: 1991 honda accord. will not start on its own.

If the car dies after it runs for a minute then I would suspect either the fuel pump or the fuel pump relay. Turn the key on but not to run, you should hear the fuel pump for about 5 seconds, you could also check the fuel injector rail for fuel pressure, just put a rag over the shrader valve before depressing it, if the pump is making pressure it will squirt out. If still no luck pull the fuel pump relay and jumper the hot wires and listen for the pump.

Posted on Jul 03, 2009

  • 13 Answers

SOURCE: 1990 Honda Accord Fast Idle Problem

usually idle that goes up and down is cause by a bad "idle control valve" located near the throttle body. Needs to be replace.

Posted on Oct 11, 2009

  • 5371 Answers

SOURCE: 1990 HONDA ACCORD WON'T TURN OVER TO START BUT IT WILL ROLL START. I HAVE CHANGED THE ALTERNATOR AND TESTED THE IGNITION SWITCH STARTER RELAY SEEMS FINE CLUTCH SWITCH SEEMS FINE MAIN RELAY IS FINE

About the only thing you didn't mention was the starter itself. You could have it tested. But before that, try to see if you have power on the small wire to starter solenoid on the starter, when key is held in cranking position. Pull the small wire off and check for power with a multimeter or a testlight while someone holds the key in crank. This is the signal wire from ignition switch that closes the elec. contacts inside solenoid so the starter gets full power from the battery to spin. (This wire also is in the circuit with the clutch switch and the starter relay.) If you have power on this wire in crank, it is very likely the starter is bad. If there is no power, check that circuit out. It is losing power somewhere from switch to starter solenoid. Good luck.

Posted on Jul 06, 2012

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