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1993 Legacy SS won't rev

Posted: Sat Jul 12, 2025 5:40 pm
by superstock2
Car starts and runs okay, idle is a little low. Under WOT the car will rev and then hit a wall around 4-5k rpm. The car revs better when given partial throttle and under load in first gear the car barely runs at all. I replaced the maf (not OEM, Delphi) and am wondering where to look next. The gas tank was also pressurizing quickly. Any thoughts are appreciated.

Re: 1993 Legacy SS won't rev

Posted: Mon Jul 14, 2025 12:52 am
by arse_sidewards
Revs great until it doesn't sounds like a fuel issue.

Re: 1993 Legacy SS won't rev

Posted: Thu Jul 17, 2025 11:57 pm
by Legacy777
Are there any codes in the ECU?