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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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10-03-2008, 08:49 PM | #1 |
Zilvia Member
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s14 breaks up bad..bad maf?
so i took my car out last night and out of the blue it acted like i was running out of gas..just kept breaking up and hiccuping. Smelled really rich almost like the coolant temp sensor was gone and it was just reading a cold car and running rich. I unpluged the MAF and obv it doesnt rev past 2200rpms but it hunts for an idle and/or stalls out. Anyone know whats going on or had similar problems..? I just changed the plugs also..
Thanks Rob
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10-03-2008, 08:57 PM | #3 |
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under wide open throttle its revs out..but light pressure on the gas and it breaks up so bad..black smoke and all..
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10-17-2008, 07:34 AM | #4 |
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so its not the maf because I disconnected it the other day and it still breaks up. seems to be running pig rich.. coolant temp sensor???
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10-17-2008, 11:01 AM | #5 | |
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you are kinda answering your own question.
unplug the cts, no change = your problem. if it gets worse... then its something else.
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10-17-2008, 04:35 PM | #7 |
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new cts..still runs like crap..but when i tap the MAF sensor the car dies..? But even when its unplugged it pops, sputters..not as bad though.
thanks again.
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10-18-2008, 12:00 AM | #8 | |
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Quote:
It could also be a bad injector. I just did a job, where the #2 injector didn't squirt. An easy way to check is pop up the fuel rail and injectors, have a sheet of paper under it, semi crank the engine, YOu will see the injectors squirt, paper with fuel on it is good injector no fuel on paper = bad. Remember, cars are easy. 1. Fuel 2. Air 3. Spark So you just have to eliminate one by one. 1. Fuel - Common: Pump, Injectors 2. Air- Common: IAAC valve , Vaccum, MAF 3. Spark- Common: DIstributor, Coil, Plugs and wires, (Ignition Timing) These are most common entities that will tend to go out. |
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