Also I'm using the 3922's and love them. They went a long way in solving my timing pull probs w/ my ATP Stg3.
Pros: solving timing pull probs
Part number: 3922
Reviews of Autolite spark plug
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It was time to change the plugs so I went for one range colder (from Autolite 3923 to 3922). Before I installed these plugs, the power would drop off dramatically above 5500 in 3rd, 4th, and 5th. Now it is a much more progressive decline. The car actually maintains that pushed back in the seat feeling in the upper revs now.
Pros: progressive power decline
Cons: power drop off dramatically
Part number: 3922
The cheapo Autolite 3923 works very, very well. Works well with chipped and K04 cars also.
Pros: works very well, good for modified cars
Part number: 3923
I have autolites, they work well, but the car became jerky at part throttle when gapped at .024, runs better when opened wider for some reason.
Pros: work well
Cons: car became jerky
i run autolite 63 (gap to 24 thousandths) on my stage 4 for 500 miles with nitrous, they look perfect. 99 cents each. to each his own.
Pros: look perfect, work great
Mileage: 800 km
Part number: 63
It has been satisfactorily argued that the inexpensive Autolites work as well as the expensive Iridiums, with the understanding that the Autolites must be changed more often.
Pros: work as well
Cons: changed more often
i just changed mine out.. i put in the autolite 3923's ($4 for the set) . they seem to work fine. one thing to watch out for though - they were all gapped differently out of the package. be sure to measure the gap before putting them in, just in case. (the gap should be .028)
Pros: seem to work fine
Cons: gapped differently
Vehicle:
Volkswagen Jetta
Part number: 3923
Seems like you did everything except swap out a $2 spark plug. I had a misfire on cylinder #1 first then cylinders #3 and #4 until I went out and bought 4 new Autolite 3923 spark plugs and put them in and BINGO no more problems the car is running strong and not throwing any codes.
Pros: car running strong, no codes
Vehicle:
Volkswagen
Part number: 3923
I tried the 3923's and my car ran like arse - rough idle etc.
Cons: rough idle
We both run Autolite Platinum and they fired up no matter how cold it is on the first try.
Pros: fires up easily, good in cold
Vehicle:
Volkswagen Corrado
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