Dead ECU? bucking breaking up loss of power.

Post by **gotboost1099** » Sat Feb 20, 2010 1:16 pm

when i unplug 02 sensors it gets better almost normal but not quite. but the ecu dosent throw a check engine light. still says code 55, any other ways to check for a bad ecu

Post by **Infinitiguy19** » Sat Feb 20, 2010 3:02 pm

You could try swamping in a known good ECU. But it seems like the O2 sensor is at fault or something else so check the ECU codes. Ironically there is a code that tells you if the ECU is bad or not, funny right.

Post by **nightops** » Mon Mar 01, 2010 7:18 am

did you check the connections to the cas? also the injector connectors are frequently corroded. ecu seems like a last possibility as it doesnt really wear with age

Post by **gotboost1099** » Mon Mar 01, 2010 1:23 pm

turns out the tune is VERRRY sensitive to octane i got gas at a american gas so i gues it wasnt true 93 octane filled up with sonoco 93 and octane booster it ran like it never did before

Post by **es.biggs** » Mon Mar 01, 2010 4:03 pm

did this bucking occur in low rpms?

my car shakes and runs like it's misfiring at a few certain rpms below 3000 then once I pass that it takes off like a bat outta hell. still tryin to figure that out...maybe an octane booster would have some kind of effect on it???

Dead ECU? bucking breaking up loss of power.

Dead ECU? bucking breaking up loss of power.

Re: Dead ECU? bucking breaking up loss of power. (gotboost1099)

Re: Dead ECU? bucking breaking up loss of power. (gotboost1099)

Re: Dead ECU? bucking breaking up loss of power. (gotboost1099)

Re: Dead ECU? bucking breaking up loss of power. (gotboost1099)

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