S4 tempII sensor question...
08-17-2007, 08:41 PM
#16
Team Owner
A word of caution , if you notice that the car is only running on half of the cylinders or suspect it, take a peek underneath the car and look at the cats, if they are glowing then you you should shut off the engine so your car doesnt catch fire and burn
08-18-2007, 03:09 PM
#17
Rennlist Member
Originally Posted by Rob Edwards
I think I failed to index the TPS on the throttle shaft properly, my gas gauge only gets to about 60-63 mpg when idling down a long hill.
Once I get the underlying idle problem solved I will to set the idle back where it's supposed to be.
08-23-2007, 05:58 PM
#18
Drifting
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Join Date: Dec 2001
Location: Sackville, Nova Scotia
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Update....
Was a bad MAF. The one I had in the car had replaced one that went about two years ago that was used....not rebuilt...so I was lucky to get the time out of it I did I guess.
Garth sent me a new MAF to test and voila......back to normal.
Was a bad MAF. The one I had in the car had replaced one that went about two years ago that was used....not rebuilt...so I was lucky to get the time out of it I did I guess.
Garth sent me a new MAF to test and voila......back to normal.
08-23-2007, 09:56 PM
#19
Rennlist Member
Boyee - did you test the MAF or just replace it with the new one and notice the difference?
08-24-2007, 12:29 PM
#20
Rennlist Member
the idle switch doesnt do anything under off throttle conditions, excpet turn off fuel on full coast. (to stop poping out the exhaust ) so, it has no effect on gas mileage. (unless you are coasting down mount everest)
i regularly disconnect them on the race cars as it keeps the idle from falling too far down on quick rev blips .
Mk
i regularly disconnect them on the race cars as it keeps the idle from falling too far down on quick rev blips .
Mk
The mechanic that recently worked on my car only had to adjust the throttle cables to get the TPS to close properly at the no-throttle position. Unfortunately, it does not want to run at the spec idle speed on cold start, or even when warmed up (probably due to crappy ISV, or maybe MAF, gaskets, vacuum leak, etc.), so I had to crank the idle back up to just under 1000 rpm to get it to stop stalling half the time. Before he adjusted it, my max instantaneous mileage was in the 60 mpg range. When he reset it, it read 90 mpg at max.
Once I get the underlying idle problem solved I will to set the idle back where it's supposed to be.
Once I get the underlying idle problem solved I will to set the idle back where it's supposed to be.