96 Mazda 4.0l missing
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Joined: Apr 2004
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From: pittsburgh,pa
96 Mazda 4.0l missing
My 4.0 misses when starting to pull out and while at cruising speed. Changed plugs, wires, and coil pack. Ran injector cleaner through it also. Pulled a code for #1 cylinder miss fire (key on egine off). The missing tends to come and go. Sometimes it will be fine while and then start missing again.
I am open to all suggestions.
I am open to all suggestions.
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Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Did the miss occur AFTER you replaced the plugs, wires & coilpack, or was it doing this missing beforehand????
If it began after the replacement work, I'd suspect a faulty plug wire or maybe a cracked plug insulator or faulty spark plug, or even a faulty coilpack coil.
If it was doing it beforehand, then maybe we have to suspect the coil pack electrical connector wire or pin for the #1 coil, or the #1 fuel injector.
Does the problem seem to be worse when damp condiions are present????
Does it seem to be present only when the engine is under load????
If it began after the replacement work, I'd suspect a faulty plug wire or maybe a cracked plug insulator or faulty spark plug, or even a faulty coilpack coil.
If it was doing it beforehand, then maybe we have to suspect the coil pack electrical connector wire or pin for the #1 coil, or the #1 fuel injector.
Does the problem seem to be worse when damp condiions are present????
Does it seem to be present only when the engine is under load????
