1990 Jeep Wrangler Q&A

1990 Jeep Wrangler Question: Engine

Why is engine sputtering at high speeds? Oxygen censor has been replaced, tune-up has been done. Thank you if can help me out. -
Answer 1
You should have the fuel pump (pressure and volume) checked and the ignition system. Either of these could be your problem. Also have them check for a plugged exhaust system. -
Answer 2
Check spark plugs and lines. I had a similar problem and this solved it on my 2000 Wrangler. -
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