DOD When Motor is Cold
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 99
Likes: 0
From: Buffalo, NY
DOD When Motor is Cold OK, I've been paying close attention to this: Since it has gotten cold out, if I start the car and start driving after only a minute or two, my DOD acts unusual. What is happening is, when I accelerate very lightly, at around 25mph, I go into 4cyl mode for a split second, get the helicoper sound and lurch forward a bit. It then goes back to 8cyl mode and then does it two more times as I increase speed. If I accerate just enough to keep it in 8cyl mode it acts perfectly. It only does this once and only when the motor is cold. I'm not really worried this is something major, I'm still getting used to a DOD motor. I wish I could only allow DOD in 4th gear on the cheap. That would be the only thing I would change. Any thoughts other than disabling DOD completly?
LS1Tech Sponsor
Joined: Dec 2005
Posts: 2,932
Likes: 12
From: CT
disable it completely...
have had mine disabled for 5 years, a couple months after I bought the car...
no issues...
have had mine disabled for 5 years, a couple months after I bought the car...
no issues...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
TECH Enthusiast
Joined: Nov 2008
Posts: 622
Likes: 1
First off.. the DoD is !NOT supposed to activate until many parameters are met!
One really important one is the engine must be at operating temperature and in closed loop.
You are drivine an Impala so we have the ability to just put the gear selector in 3 (drive)
and the DOD is disabled... it cannot activate.
Do you have a diablo scanner/tuner? or some means of data logging...
morning LEW!
One really important one is the engine must be at operating temperature and in closed loop.
You are drivine an Impala so we have the ability to just put the gear selector in 3 (drive)
and the DOD is disabled... it cannot activate.
Do you have a diablo scanner/tuner? or some means of data logging...
morning LEW!
Sounds like it's coming on while the entine/tranny are still warming up.
Factory settings keep DOD disabled for the first 60 seconds of engine run time and while the coolant temp is under 104*F. Might be worthwhile bumping one, or both of those.
I have disabled DOD in third gear, so engine warms up completely before I hit a road with a speed limit high enough to hit fourth gear.
Factory settings keep DOD disabled for the first 60 seconds of engine run time and while the coolant temp is under 104*F. Might be worthwhile bumping one, or both of those.
I have disabled DOD in third gear, so engine warms up completely before I hit a road with a speed limit high enough to hit fourth gear.
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Joined: Dec 2005
Posts: 2,932
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From: CT
Mornin' man!!!
yep, got hit with 13" of snow last friday... and now this wednesday, we're supposed to get whacked with another 12+ inches from a Nor'Easter comin...
yep, got hit with 13" of snow last friday... and now this wednesday, we're supposed to get whacked with another 12+ inches from a Nor'Easter comin...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 99
Likes: 0
From: Buffalo, NY
I do not have any means of tuning or data logging. My temp gage is at 1/8. Normal operating temperature is exactly 1/2.
I think I'll just accerate faster than a 20 second 0-60 in the morning so it doesn't occur.
Whaaa... I love Buffalo, there is currently only 4 inches of show on my grass. This 1 - 2 inches at a time is a waste of my time. I enjoy a good 12 inches... easier to snowblow.
I think I'll just accerate faster than a 20 second 0-60 in the morning so it doesn't occur.
Whaaa... I love Buffalo, there is currently only 4 inches of show on my grass. This 1 - 2 inches at a time is a waste of my time. I enjoy a good 12 inches... easier to snowblow.
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Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 99
Likes: 0
From: Buffalo, NY
Thread Starter
Staging Lane
Joined: Dec 2010
Posts: 99
Likes: 0
From: Buffalo, NY
I've been trying different things in the morning... one of them has been to not put my heated seat on high after I first start the car. Three days in a row I've done this and each time this condition has not occurred. Tomorrow I'll turn the seat on right away and see if happens again.
