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I have a 1994 toyota camry v6 1mz-fe engine, it tries to crank but wont stay running , i ran a scanner on it and it said the mass air flow was bad and the intake air tempture senseor was bad i have re

I ran a scanner on it and it said the mass air flow was bad and the intake air tempture senseor was bad i have replaced bith and it still wont crank, it will turn over and stay running for a second then shut off , any help would be appricated

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  • hotrod68us20
    hotrod68us20 Nov 28, 2012

    it does not have a theft system on it , its a 94 but requires a obd2 to read it

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  • 129 Answers

Those year camrys have tricky theft systems might need to be relearned or busted wire somewhere.

Posted on Nov 28, 2012

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

SOURCE: 92 ford ranger

check your vacuum lines if one is off then it will do that too.

Posted on Jun 29, 2008

  • 321 Answers

SOURCE: buick lesabre nightmare 2

  • The PCM doesn't even see the O2 sensor until engine temp has reached operating temp,the vehicle goes from open loop when cold,to closed loop when warm,where the PCM uses the O2 sensor to measure the rich/lean of the exhaust content,and from that,adjust fuel richness to achieve 14.7 to 1 air/fuel ratio.So when cold,the O2 sensor is out of the picture anyways.When unplugging sensors,it can be deceitful.The PCM has a program whereas,if a critical sensor (such as the mass air flow) is somehow damaged and out of the picture,the PCM will substitue a generic value that will allow the engine to stay running.So,by unplugging the MAF,it did try to run on it's own better than plugged in,there's the problem area.The vehicle is running better with the MAF unplugged,because the MAF is likely bad,and the PCM is substituting it's generic value when it IS unplugged.Something to recheckThe PROM update is a newer program for the PCM,and likely won't fix it unless the PCM is bad.I would try a good used PCM as a last or later resort,because i have seen my fair share of defective PCM's too.I have taken some PCM's apart,and found capacitors that had gone bad and leaked all over the circuit board,mostly Honda and Mitsubishi and Chrysler though.Good luck,keep me posted.

Posted on Aug 01, 2008

SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

Posted on Oct 17, 2008

daves944
  • 1050 Answers

SOURCE: Need to find Mass Air Flow sensor on 98 Camry

You are not stupd! :-) This car has a speed-density system. The computer is programmed to meter fuel and spark timing from manifold absolute pressure (MAP), engine temperature, air temperature, and throttle position only.

Are you having a problem?

Posted on Mar 29, 2009

  • 39 Answers

SOURCE: mass air flow sensor bad on 2002 monte carlo ss

It's should be a simple remove and replace. Just make sure the engine is off. Also do not touch any of the filament wires on the sensor, just the plastic housing. Also after you install it drive the car for a little while (city speeds, cruising speeds and inbetween). That way the computer will be able to readjust its setting since it is a new sensor.

Posted on Apr 02, 2009

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