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International Automotive Technicians Network
Re: 2001 toyota Tacoma codes Po 171 and 172
Posted to Technical Discussion Forum on 1/20/2007 11 Replies

Hi Andy,

Can you please post up all of the freeze frame data?

I would suggest you also run the vehicle at idle, 2500rpm and cruise down the road at a steady speed and throttle. Record the LTFT, STFT and Total Trim numbers. Make sure to record the numbers a... Login to read more.

11 Replies Received (View Replies)