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No first gear, electronics?

Old Dec 15, 2009 | 11:46 PM
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Default No first gear, electronics?

I just switched back to a 4l60e from a TH350. When I had the 350 I had my tuner take all the trans stuff from the tune. I just got the 4L60e in and wanted to see if it engaged all the gear. The car has reverse, and moves when its in drive third and second gears. When I put the car in first it kinda lurches and dosent want to move. If you bring the rev's up it will move slowly. I checked the fluid level and it seems fine. I was wondering if it the tune messing it up. Let me know what you think.
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Old Dec 16, 2009 | 09:01 AM
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Yes without the pcm proper tune in the pcm the trans will just be in limp mode and if the trans has a transgo it will bind up in manual low one when in that condition
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Old Dec 16, 2009 | 10:56 PM
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Originally Posted by performabuilt
Yes without the pcm proper tune in the pcm the trans will just be in limp mode and if the trans has a transgo it will bind up in manual low one when in that condition
Thanks man, thats what I thought was going on. BTW nice write up in Popular Hotrodding.
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Old Dec 17, 2009 | 09:30 AM
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Thanks and your welcome
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Old Dec 17, 2009 | 12:07 PM
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Might also check the linkage, if you start in second
you get no first.
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