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Service Engine Light.......Replace Ignition Coils

Given that you have some DTCs related to MAF, I'd try cleaning the MAFs first. Easy job, even for the inexperienced mechanic.

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Old 11-09-2020, 11:30 AM   #1 (permalink)
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Given that you have some DTCs related to MAF, I'd try cleaning the MAFs first. Easy job, even for the inexperienced mechanic.
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Old 11-09-2020, 11:57 AM   #2 (permalink)
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Given that you have some DTCs related to MAF, I'd try cleaning the MAFs first. Easy job, even for the inexperienced mechanic.
Agreed. Ignition coils do not all fail at once. When a coil fails, you will get a misfire in a specific cylinder.

It sounds like the MAF or the O2 sensors.

Last edited by wanker; 11-09-2020 at 12:04 PM.
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Old 11-12-2020, 07:13 AM   #3 (permalink)
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Agreed. Ignition coils do not all fail at once. When a coil fails, you will get a misfire in a specific cylinder.

It sounds like the MAF or the O2 sensors.
Now that’s just not true *cough* old FX35’s.
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Old 11-09-2020, 02:04 PM   #4 (permalink)
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Originally Posted by SouthArk370Z View Post
Given that you have some DTCs related to MAF, I'd try cleaning the MAFs first. Easy job, even for the inexperienced mechanic.

Thanks...what do I need to clean it with? If that does not work it's probably one of the sensors? I just replaced my overhead cam sensors a few months ago......before that the crankshaft position sensors.....damn sensors.

Last edited by MSC43; 11-09-2020 at 02:07 PM.
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Old 11-09-2020, 02:32 PM   #5 (permalink)
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Thanks...what do I need to clean it with? If that does not work it's probably one of the sensors? I just replaced my overhead cam sensors a few months ago......before that the crankshaft position sensors.....damn sensors.
MAF sensor cleaner is sold in a spray can.
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Old 11-10-2020, 09:16 AM   #6 (permalink)
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Thanks...what do I need to clean it with? If that does not work it's probably one of the sensors? I just replaced my overhead cam sensors a few months ago......before that the crankshaft position sensors.....damn sensors.
All you need is a screwdriver (or nut driver) and some MAF cleaner. With car off, unplug one of the MAFs, remove the two screws holding it in, remove MAF, spray with cleaner, let dry, replace MAF, and replace screws*. Repeat on the other side.

As per wanker and JARblue, the cleaner comes in a spray can. I like the CRC brand, also.

*Edit: Forgot to mention plugging the MAF back in. But if you need to be told that, maybe you shouldn't be working on cars.
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