Runs like $#!+ when cold. Why?
#1
Runs like $#!+ when cold. Why?
86 951 all stock. When the engine is cold it just doesn't want to run right. I give it gas with little response. Once the engine warms up it runs fine. I just replaced the oxygen sensor do to bad gas milage. Any ideas?
#6
Addict
Rennlist Member
Rennlist Member
Both likely causes already mentioned, but if this just started all of a sudden, check the TPS as well.
tip - http://www.arnnworx.com/tps-repair.htm gives some good points on testing.
tip - http://www.arnnworx.com/tps-repair.htm gives some good points on testing.
#7
Pro
Join Date: Sep 2006
Location: San Antonio, TX 78154
Posts: 717
Likes: 0
Received 0 Likes
on
0 Posts
you know whats funny... I had to literally give my car gas for 2 min before driving off. I removed the heater control valve and now I just have to give it about 5-10 secs of gas before going.
Trending Topics
#9
Rennlist Member
My car is completely gutless until it warms up. I always slow down traffic when pulling out on a right turn because I don't want to push it hard enough to accelerate at a decent rate.
#10
#11
Rennlist Member
My 951s have always ran great when it is cold. 15 psi becomes 16 psi with no other changes.
Oh, and I think letting a car idle for anything more than 1 minute before driving is just a waste of time. The only thing you are warming up is the motor itself and there are so many other things that need warming up to operate at best. In the boxster manual it actually states to NOT let the car sit at idle to warm up. That you should instead drive the car easy for a few minutes before driving aggressively.
Oh, and I think letting a car idle for anything more than 1 minute before driving is just a waste of time. The only thing you are warming up is the motor itself and there are so many other things that need warming up to operate at best. In the boxster manual it actually states to NOT let the car sit at idle to warm up. That you should instead drive the car easy for a few minutes before driving aggressively.
#15
mine was doing this too. it turned out that the refernce and speed sensor harness wires going to the DME were falling apart. i respliced that area and it fixed it.
try that or the DME engine temp sensor
try that or the DME engine temp sensor
Last edited by Enothe; 11-06-2007 at 05:32 AM.