Engine braking when trying to coast.

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Jun 28, 2009 | 11:03 AM

s10_xtreme

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From: Michigan

Engine braking when trying to coast.

I am tying up loose ends of my ls1/4l60e into an s10 swap. One of the major issues I am having is the torque converter (I'm assuming) doesn't disengage when I let off the throttle. If I apply the brakes it will but if cruising down the highway or an off ramp and i let off to coast to a slower speed the trans uses the engine to pull down the speed fairly rapidly. Just like a manual left in gear. I have had problems to no end from the guy I had write the tune. On moday I am going to call about getting computer #4 to try and fix the latest round of "oversights" and I would like to know what exactly to call this issue and possibly a parameter to change to correct it. Thanks.

p.s. what causes the battery light to come on when there is 14V and the alt seems to be working?

Jun 29, 2009 | 08:23 AM

Old Geezer

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From: GA, USA

Decel fuel cutoff?

Jun 30, 2009 | 04:04 PM

s10_xtreme

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Quote:

Originally Posted by Old Geezer

Decel fuel cutoff?

nope, runs rich when it does this

Jul 22, 2009 | 11:06 PM

t0astm0nkey

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was this problem resolved? Im having the same problem

Jul 27, 2009 | 11:26 AM

t0astm0nkey

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Can anyone help with this problem? im not getting any codes except evap and fuel tank pressure, this wouldnt cause the problem would it?

Jul 27, 2009 | 11:29 AM

ssman00

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From: spartanburg south carolina

torque managment still on?

Jul 27, 2009 | 01:50 PM

hellbents10

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From: Spring Lake, MI

On a swap its always best to get a live tune for all of these little things that can occur. Often I have to do weird stuff to get around problems with having a eng, trans computer, harness in a vehicle that it does not belong in.