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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: dectar99 on June 14, 2012, 07:59:55 AM

Title: 98 Tracker high idle at start & it's HOT outside
Post by: dectar99 on June 14, 2012, 07:59:55 AM

I have a high idle 1,500RPM at start but it goes back down to 900 after a few min. it sounds like the cold idle warm up circuit is on, but it's 89* F in the morning when I leave for work, & just started a while back, I have looked & don't see anything worng but haven't had the time to dig into it yet...... any sugestions were to start??

98 Tracker 4dr 5speed 16V

Title: Re: 98 Tracker high idle at start & it's HOT outside
Post by: talonxracer on June 14, 2012, 08:07:53 AM

89 degrees is still well below the temps required for the ECU not to enter cold start. Sounds perfectly fine to me, as long as the idle drops to normal as the engine heats up. Coolant temp and IAT regulates the warmup rpms dictated by the ECU.

Title: Re: 98 Tracker high idle at start & it's HOT outside
Post by: Skyhiranger on June 16, 2012, 08:19:01 AM

Quote from: talonxracer on June 14, 2012, 08:07:53 AM

89 degrees is still well below the temps required for the ECU not to enter cold start. Sounds perfectly fine to me, as long as the idle drops to normal as the engine heats up. Coolant temp and IAT regulates the warmup rpms dictated by the ECU.

X2.