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International Automotive Technicians Network
Re: 2.5 TBI mystery
Posted to Technical Discussion Forum on 1/10/2019

Hi Michael

Why not just a thorough TBI/IAC cleaning? Road test and monitor IAC counts;no load counts should be 15 to 18. Monitor the ECT and PSPS for stable numbers. Very unusual,but have seen ECM cause higher than normal idle speed,caused by a faulty or sh... Login to read more.