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![]() Enthusiast ![]() Joined Jul 15, '07 From Mexico Currently Offline Reputation: 2 (100%) ![]() |
I saw a lot of posts about the p0401 code, but i canīt find somebody wich fix this code. i already did all this changes to my car.
i changed the next list: spark plugs wires spark plugs distributor cap and rotor head gasket fuel pump fuel filter. MAP sensor cleaned: EGR valve IAC valve checked all egr vacumm lines and i have same problem, same p0401 code, my car its on very slow rpms it shakes on any speed (10, 30, 60 MPH) and i have no idea what else to check to fix this problem ... did someone else having this problem and got fixed?? thank you!! |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Mar 8, '12 From Hanford/Fresno, Ca Currently Offline Reputation: 20 (100%) ![]() |
I'd start with mild stuff like run premium gas AKA 91 for NA or run 93 for turbod. I'd recommend running on high quality gas. I run 89octance Chevron gas in my lil 5sfe daily. Run like that for a week and see if there's any difference. If not then use Lucas Fuel Treatment or the Sea Foam.
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Lo-Fi Version | Time is now: July 15th, 2025 - 10:37 AM |