2002 Toyota Celica

Tiny
1ANGEL4JAMIE
  • MEMBER
  • 2002 TOYOTA CELICA
  • 4 CYL
  • FWD
  • MANUAL
  • 133,000 MILES
I just bought a 2002 Toyota Celica with the vvt-i engine in it. It has a really bad miss in it, You can unhook the spark plug wires one at a time and it kills the motor, you can unhook the injectors one at a time it kills the motor except number two, and it doesnt make a difference ever after swapping injectors.
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Wednesday, August 20th, 2008 AT 5:15 PM

8 Replies

Tiny
MHPAUTOS
  • EXPERT
Hi there,

I would be doing a compression test first, if you have good compression re post and we can work through this problem.

Mark (mhpautos)
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Wednesday, August 20th, 2008 AT 5:18 PM
Tiny
1ANGEL4JAMIE
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We run a diagnostic scan and it showed the code for a camshaft sensor and a tps sensor both are good and compression is good.
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Wednesday, August 20th, 2008 AT 5:23 PM
Tiny
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How did you check the two sensors for serviceability?

Mark (mhpautos)
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Wednesday, August 20th, 2008 AT 5:27 PM
Tiny
1ANGEL4JAMIE
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Unplugged them
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Wednesday, August 20th, 2008 AT 5:29 PM
Tiny
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What you will have to check is that you have injection pulse into the dead cylinder, you can do this with a noid light, or a LED test light, you will also have to check the spark voltage as well this will have to be done on an oscilloscope as this will give all the ignition voltage information, if you have good compression it must be a voltage problem or a fuel problem, you say you swapped the injectors with out any result, so now check the signal into that injector, the spark plug the ignition lead and the voltage, hint is pull the plug and if it is fouled with wet fuel the injector is firing, try this next,

mark (mhpautos)
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Wednesday, August 20th, 2008 AT 5:36 PM
Tiny
1ANGEL4JAMIE
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All injectors have good pulse with noid light, and its getting plenty of fire none of the plugs are wet.
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Wednesday, August 20th, 2008 AT 5:38 PM
Tiny
MHPAUTOS
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Well if you have fuel, compression and ignition all that is left is a vacuum leak causing an over lean mixture, check here next.

Mark (mhpautos)
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Wednesday, August 20th, 2008 AT 5:47 PM
Tiny
1ANGEL4JAMIE
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Thank you I thought that was the proble thanks so much.
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Wednesday, August 20th, 2008 AT 5:49 PM

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