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Discussion Starter #1
Problem: Rough idle
When: It happens when the Air Con. is off. When I turn the Air con. on, the idle is good
A/F ratio: With A/C off high 10s to mid 11s
With A/C on mid 11s to low 12s and sometime up to 14.7 The A/F ratio changes all the time from 11s to 14.7 when idle and light throttle, but A/F perfect underboost.

Have any of you guys had this problem before? I've tried changing Haltech setting from Batch 1 to 3, but didn't do much. Could this be a problem from installtion? Thanks for all the info.
 

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Discussion Starter #2
I see that Toyomoto includes MSD IGNITION DIGITAL DIS-4 with the Haltech. Would the rough idle condition be better with this unit? Now sure if it'll solve my problem.
 

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Discussion Starter #5
Thanks JAman and Maxxpsi. I'll try both.
 

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Did you get it to work? What was the problem?
 

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Discussion Starter #7
I've changed back to my previous setup now (emanage with TE conditioner). I've had too much problem with haltech eversince I used it. There was nothing wrong with haltech, and I have good tuners around here, but they've just never experienced tunning standalone IS. With emanage setup at least i know it works because I've used it before and run no problem.
 
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