Check engine lights, both on, '95 355

Discussion in '348/355' started by BLACK355MIKE, Sep 6, 2009.


    BLACK355MIKE Rookie

    Sep 6, 2009
    Both my check engine lights are on, car has run well & strong before, I have not used it as often as before, before 3-4 times per week , last 4 weeks just 1 time per job has taken over my life the last 3 months.
    Car sounds very muted, reacts like it's on 4 cylinders and back fires if I try to drive it.
    Flat bedding it to my mechanic next week...
    Any ideas?

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  3. spaghetti_jet

    spaghetti_jet Formula Junior

    Jan 5, 2005
    Full Name:
    check the electrical connectors into MAF and TPS sensors on each bank. Give them a little squirt of electrical contact cleaner and plug them back in. See what happens & let us know.
  4. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    You can try a reset of the ECUs (hold the red button on the ECUs for more than 10 seconds to erase the codes and reset the ECU.) Then do an idle relearn, Turn off battery at the right front shock tower cover, then back on, then let the car idle with A/C off for 10 minutes.

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