Help ... False Hot Engine?
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
It's junk... Don't believe it....
I just replaced my laptop 3 months ago, at the time so many bugs w/ hptuner using vista, so I told them I wanted xp installed on my notebook, not vista..........guess what? The SOBs wanted 200.00 more because "microsoft comps them 200 a unit to install vista" according to the salesman who had to get a superior on the phone as he was loosing a 2,000.00 sale! In the end I got xp w/ no upcharge, and guess what? All the new drivers and bug fixes are out for vista....now
It sucks. Even my new office machine sucks with Vista.....
It looks nice.....but does not work.
All my Vista stuff is up to date...and it still dosen't work with my tuning stuff....
Chuck CoW
Thread Starter
Racer
Joined: May 2007
Posts: 260
Likes: 0
From: Holbrook NY
Here's another update ... sorry to bring up an old thread but I thought some folks would want an update.
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Race Director
Joined: Feb 2006
Posts: 11,732
Likes: 15
From: SC
Here's another update ... sorry to bring up an old thread but I thought some folks would want an update.
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Thread Starter
Racer
Joined: May 2007
Posts: 260
Likes: 0
From: Holbrook NY
I am going to try a warmup today. Temp is in the 40's so we'll see what happens.
Melting Slicks
Joined: Sep 2005
Posts: 2,670
Likes: 134
From: merritt island fl
C1 of Year Finalist (stock) 2019
2016 C1 of the Year Finalist
2015 C2 of the Year Finalist
Here's another update ... sorry to bring up an old thread but I thought some folks would want an update.
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Safety Car
Joined: May 2000
Posts: 4,808
Likes: 344
From: Albuquerque NM
Thread Starter
Racer
Joined: May 2007
Posts: 260
Likes: 0
From: Holbrook NY
I will have Chuck look up this code. It is surprising that they would incorporate and "Engine Undertemp" parameter. My only guess on a reason for that for some reason the engine may have emmissions issues at low temp. Unless you are in northern Alaska, I don't think engine undertemperature is a real issue. Weird.
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Race Director
Joined: Feb 2006
Posts: 11,732
Likes: 15
From: SC
Here's another update ... sorry to bring up an old thread but I thought some folks would want an update.
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Have not had the false "hot engine" indication since pulling the battery terminal about two weeks ago. It was back this AM ... pretty cold out. Slow start and slow, easy warm up drive. After sitting at work all day in the cool weather, the temp gauge was working again tonight but the "Check Engine" symbol was on. Took it home, pulled the battery cable and it went out again. Can't keep doing this. Next time I am back up at Corvette's of Westchester, I think I will have Chuck put back the 180 t'stat (he did not install the 160 t'stat) ... unless one of you guys knows of a sure fire workaround or reason (other than disconnecting the battery).
Looks like I'll be making a trip to CoW to tweak the tune or remove the 160 t-stat. For the slight gains it offers might not be worth dealing with this type of issue for 6 months out of the year.
Drifting
Joined: Dec 2004
Posts: 1,518
Likes: 1
I will have Chuck look up this code. It is surprising that they would incorporate and "Engine Undertemp" parameter. My only guess on a reason for that for some reason the engine may have emmissions issues at low temp. Unless you are in northern Alaska, I don't think engine undertemperature is a real issue. Weird.
Thread Starter
Racer
Joined: May 2007
Posts: 260
Likes: 0
From: Holbrook NY
Here's an update on my situation. Got the Engine Hot/AC off and CEL last night, came on after getting onto the highway headed to a resturant. After dinner started the car and sure enough the problem is still there, my fans are running at 100% too while the CEL is on (in an attempt to cool the motor despite it not being hot).
Looks like I'll be making a trip to CoW to tweak the tune or remove the 160 t-stat. For the slight gains it offers might not be worth dealing with this type of issue for 6 months out of the year.
Looks like I'll be making a trip to CoW to tweak the tune or remove the 160 t-stat. For the slight gains it offers might not be worth dealing with this type of issue for 6 months out of the year.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Were I driving where the temperature can go to below freezing, rest assured that I would be running a stock t-stat to keep the engine warm and the temperature coming off the heater on the inside HOT. A 160 degree t-stat in the winter climates is not what I consider a good idea.
Hells bells, I'm in Florida and I'll keep the stock t-stat and not have over heating problems.
Drag race the car every week? Run the cooler t-stat. Drag race the car once in a while? Why bother with the 160 t-stat. Don't drag race the car? Fahgedaboudit.
My $.02
Elmer
Hells bells, I'm in Florida and I'll keep the stock t-stat and not have over heating problems.
Drag race the car every week? Run the cooler t-stat. Drag race the car once in a while? Why bother with the 160 t-stat. Don't drag race the car? Fahgedaboudit.
My $.02
Elmer
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Safety Car
Joined: May 2000
Posts: 4,808
Likes: 344
From: Albuquerque NM
Were I driving where the temperature can go to below freezing, rest assured that I would be running a stock t-stat to keep the engine warm and the temperature coming off the heater on the inside HOT. A 160 degree t-stat in the winter climates is not what I consider a good idea.
Hells bells, I'm in Florida and I'll keep the stock t-stat and not have over heating problems.
Drag race the car every week? Run the cooler t-stat. Drag race the car once in a while? Why bother with the 160 t-stat. Don't drag race the car? Fahgedaboudit.
My $.02
Elmer
Hells bells, I'm in Florida and I'll keep the stock t-stat and not have over heating problems.
Drag race the car every week? Run the cooler t-stat. Drag race the car once in a while? Why bother with the 160 t-stat. Don't drag race the car? Fahgedaboudit.
My $.02
Elmer
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
I'm sure that there are conditions where the engine temp will get toasty in the winter. My experience over a moderately long drive (2 or 3 hours), where the temperature is in the teens, will drop the engine temp down as low as the t-stat will allow and reduce mileage and also reduce the output temperature from the heater. Driving around town will not bother the heater of a car with a 160 t-stat.
Elmer
Thread Starter
Racer
Joined: May 2007
Posts: 260
Likes: 0
From: Holbrook NY