Question about 2002 Toyota Celica

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Bad miss i have an 02 celica gt it has a bad miss at low rpm. you can unplug the number 2 injector and it doesnt make a difference either way and its gasing the number 2 plug out u you can take the efi fuse out and the check engine light goes off i cannot figure out whats going on can you help before i burn it down lol

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If you unplug the #2 cylinder and there is no change that means that you have no fire on that cylinderyou most likely have either a bad wire bad coil pack/distributer.if neither is bad then it's a computer problem and that will need to be replaced. you can get a replacement computer from a salvage yard for alot less than trough a dealer. hope this helps please rate this solution thank you.

Posted on Aug 29, 2008

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On 98 Dodge 5.9 1500 I have developed vibration between 1100 - 1400 RPM. In gear driving or sitting and running up to RPM. Very noticeable. Seems to go away below and above RPM.


Have your local auto parts store do a OBD scan to see if any codes are reported.. You are looking for a miss fire cylinder. Check the electrical system first particularly a bad distributor cap allowing a spark to jump .

It is possible a fuel injector is not opening. Check continuity at each injector With a stethoscope listen for a distinct click at each injector and confirm injector activation.

Next remove plugs and check for a plug that appears different a sign of miss fire, Do a compression check at least 120 psi. If low compression I would expect a burnt exhaust valve.

.Hope this helps?
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I swap my engine on my 03 ranger 3.0 flex fuel,with one from a 02 ranger gas fuel. It was running rough until I put my old fuel rail and injectors.But I still have a miss on cylinder #3 already install new...


Check compression in number three. You could have bought a bad engine. And yes. You need to change every sensor. If they don't match with the plugs. replace the engine. There is a reason for different engine codes. You should have stuck with them.

Jul 25, 2015 | Cars & Trucks

1 Answer

02 mercury sable P0301 and P0316


You have a miss in the number 1 cylinder during the first 300 revolutions and then during the next 1000 rpm it is still missing. Depending on the engine type you can have a bad plug, plug wire, or coil if it has a coil on each plug. You can also check for the injector ground wire and connector for #1 plug.

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Miss fires at ideal smells like to much fuel out of exhaust. Runs better at higher rpm. 2000 Pontiac Grand am 2.4L


If it improves with rpm, I would suspect a stuck injector (not closing) causing your engine to run rich, or a bad temperature sending unit. You should check for fault codes (they will do this for free at Autozone). You will most likely have a code for a bad oxygen sensor. Don't replace it until you correct the rich fuel mixture with the bad one unplugged. The rich mixture is the cause of the bad O2 sensor, not the symptom.
I you unplug the O2 sensor the ecm will substitute a generic value, allowing you to correct the real issue without destroying another O2 sensor. They are not cheap.
You can verify a stuck injector cyl by cyl by inspecting the plugs. If they all look the same, you may want to unplug the cold start injector and see how it runs.

May 12, 2011 | 2000 Pontiac Grand Am GT

1 Answer

Low rpm at idle bad miss exspecially at redlights when brake is pushed but sounds totally different when put in nuetral


may have a bad coil or injectors are clogged or you have a faulty one maybe. Have a code reader get codes to strt with. It makes things so much simpler that way.

Nov 25, 2009 | 1999 Pontiac Grand Am GT

1 Answer

My 99 dodge ram 1500 sport 4x4 5 speed manual tranny started missing real bad,one day while i was going down the highway.So bad that you can hear it in the exhaust and it's a constant miss.I was in 5th...


you did not state whether or not you have a check enging lite on, if you do not have a check engine lite on then it is not a sensor related issue, if you hearing a miss from your exhaust at high rpm you may have encountered a broken exhaust valve spring in a single cylinder causing the misfire at high rpm, sometimes they break bad enough to drop the valve then there is no guess work, but sometimes they just crack or become weak and do not seal off compression like they are supposed to do. I would suggest you preform a cylinder compression test to check the internal condition of the engine , do a wet and dry test compare the numbers, if all cyls raise on wet test then okay if you don't have a substancially low cyl from the others during the dry test, now if you have low cyl that does not raise with oil during the wet test you have a mechanical issue hard part failure... hope this helps... check all this after you have eliminated any electrical issues...

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1 Answer

'93 Celica GT 2.2L w/ Auto Trans. hesitates, jerks


hi,

sounds like a vacuum leak, injectors clogged, bad plugs, plug wires or maybe low tranny fluid or combo one all, have it dynoed to save yourself some money of course.

good luck

J

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2 Answers

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I had the same problem, replacing you thermostat should do the trick, i spent 8.99 on a new thermostat and 99 cents on a seal. For some reason engine temperature affects the transmission shifting. Good luck

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1 Answer

Bad acceleration


Your catalytic converter needs to be replaced. It's becoming clogged, and preventing your exhaust from escaping properly.

May 25, 2009 | 1993 Toyota Celica

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