soccerplayer2007
Active LVC Member
For sure. I'll do that this coming week or weekend.
I recently had the same issue and the error code of "too lean". The COPs were the issue. The oxygen sensors on the cat are throwing the error code because there is unburnt fuel going into the cat. If you let it go on misfiring you will plug up the catalytic converter and have to replace that also.
Good info, I got plugs, coils, and vcgs (just in case) on the way. Hoping to get to it this weekend if they arrive in time. Per the helpful advice of those here not wasting too much time trying to chase other issues down until I get those swapped out. Although I may go and get a can of MAF cleaner. Not expecting it to fix the problem but figure might be good maintenance to do anyways.
It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up."
Transmissions can shudder in a very similar manner to torque converters. To determine whether the shudder is tranny or TC related, run your vehicle for a little while till it begin to shudder and immediately park it. With your foot on the brake, put the transmission in Drive, and apply light throttle. If you feel shuddering, then it's the Torque converter; if not, then the problem is within the transmission.