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90dpscoupe · 10-03-2001, 10:26 PM

I have the same problem, i definately hear it from the injectors, i recently run some stp injector cleaner through, but no luck, im thinking the 20w-50 oil im using is too heavy also. keep this posted so i know what to try, im guessing the stock fuel pump and fpr isnt quite up to parr.

10-03-2001, 10:26 PM	#4
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	I have the same problem, i definately hear it from the injectors, i recently run some stp injector cleaner through, but no luck, im thinking the 20w-50 oil im using is too heavy also. keep this posted so i know what to try, im guessing the stock fuel pump and fpr isnt quite up to parr.