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Unread 04-08-2012, 03:35 PM   #1
MoparXJ
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injectors

I'm having the power issue work my 93 XJ, if an injector is out wouldn't the engine run very rough or is there different levels of messed up.

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Unread 04-08-2012, 07:53 PM   #2
sctmcly0
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It if the injector is bad you will def. have a misfire and it should me pretty noticeable
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Unread 04-08-2012, 08:07 PM   #3
laybackman
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Quote:
Originally Posted by MoparXJ View Post
I'm having the power issue work my 93 XJ, if an injector is out wouldn't the engine run very rough or is there different levels of messed up.
Loss of power as when you hit the skinny pedal it is real sluggish? Remove the air filter element and see if that makes it better. If not then when was the last time the inline fuel filter was changed? If either of these are clogged they will kill performance.
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Unread 04-08-2012, 10:06 PM   #4
MoparXJ
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The fuel filter is new, I haven't ran it straight off without the filter yet. The main concern is the sputter at low rpms
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Unread 04-09-2012, 07:09 AM   #5
laybackman
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If you can eliminate the fuel and air filter as the cause then the next thing I would do is check the Throttle Position Sensor in the Throttle Body. Some times the shaft that the TPS is connected to gets worn out. I would also remove and clean the Idle Air Control sensor in the TB. The IAC can get real dirty along with the bore it sits in. Remove it and clean it with some type of liquid like carb cleaner and fine steel wool. Make sure you clean the bore in the TB also.

I like to check all the stuff that costs nothing to check first...
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