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Joined: Oct 2004
Posts: 4
mrjason
New Member
mrjason Nov 4, 4:57pm - #317745 

New Member
2003 Mitsubishi GS

Joined: Oct 2004
Posts: 4
Ruston, La
Random cylinder misfire?

I have a friend who has a Celica GTS 6spd. He has been getting the random cylinder misfire. The dealership had it and said they fixed it, something about a sparkplug being loose. Now the car has never run the same and he has taken back several times and they say nothing is wrong. Now the code came back, well at least I think it did. He erased it by pulling the ecu fuse before he had the code read. I mean he has been running like high 17's and low 18's. The spark is what gets me, couldn't a loose spark plug cause a head to crack? I've been trying to get him to get a compression check, when he gets that i'll post but untill then does anyone know what could be wrong? He says the power is there up top but not in the mid rpm's like it use to. Anything after 6k rpm in his car is quick, but before that a tercel can out run him.
Joined: Oct 2002
Posts: 929
CID498
ECelica Staff
CID498 Nov 4, 6:43pm - #317746 

ECelica Staff
2000 Toyota Celica GT

Joined: Oct 2002
Posts: 929
So.Cal
Dude that avitar has gotta go.

"They don't make no seatbelt for the mind. So I can't buckle up for this ride!"
Joined: Oct 2004
Posts: 4
mrjason
New Member
mrjason Nov 4, 7:19pm - #317747 

New Member
2003 Mitsubishi GS

Joined: Oct 2004
Posts: 4
Ruston, La
ok, no problem
Joined: Oct 2002
Posts: 929
CID498
ECelica Staff
CID498 Nov 4, 8:45pm - #317748 

ECelica Staff
2000 Toyota Celica GT

Joined: Oct 2002
Posts: 929
So.Cal
thanx. A loose spark plug won't crack a head but it will definately lower the compression. Maybe he should have his coil packs checked.

"They don't make no seatbelt for the mind. So I can't buckle up for this ride!"
Joined: Oct 2004
Posts: 4
mrjason
New Member
mrjason Nov 4, 9:48pm - #317749 

New Member
2003 Mitsubishi GS

Joined: Oct 2004
Posts: 4
Ruston, La
Alright, we will check that after work.
Joined: Aug 2003
Posts: 2,926
celicaTRDgts
Specialist
celicaTRDgts Nov 4, 10:10pm - #317750 

Specialist
02 Toyota Celica

Joined: Aug 2003
Posts: 2,926
Arizona
had the same problem...i had misfire on a cylinder...it was due to my after market injectors...put to much fuel in and it couldnt burrn it off that quick

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Joined: Oct 2004
Posts: 4
mrjason
New Member
mrjason Nov 4, 10:46pm - #317751 

New Member
2003 Mitsubishi GS

Joined: Oct 2004
Posts: 4
Ruston, La
All he has is an AEM Cold Air Intake and A catback exhaust(not sure what brand).
Joined: Jan 2004
Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber Nov 5, 4:28am - #317752 
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
Tell him to go back to the stock airbox and exhaust and see how his car runs, and what times he gets in the 1/4.
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