Lower temp thermo-switch for S4 after-run system......(RESULTS ADDED)
04-29-2004, 06:56 AM
#11
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Same is true for the 1.8T VWs (and I belive the TTs).
On my wife's Jetta, if I start it up and then immediately shut it down (so the car hasn't had any chance to warm up), the pump still runs.
-Dave Pramanik
-Dave Pramanik
04-29-2004, 06:58 AM
#14
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Corrected below/ more than just run the after-run system(ECU primary sensor as well). Have you run..
this for a while to make sure there are no ill effects? Are you chipped? If so have you looked at fuel trim after installation?
Good info(thanks) as my after-run pump/fan rarely come on at all. Just want to make sure there aren't side effects associated with changing this sensor/threshold. I do know the green ones replaced the original black ones due to the originals often failing or giving erroneous readings(have one I owe ZoldMan for) but the sensors are roughly the same measurement(reading)-wise.
Good info(thanks) as my after-run pump/fan rarely come on at all. Just want to make sure there aren't side effects associated with changing this sensor/threshold. I do know the green ones replaced the original black ones due to the originals often failing or giving erroneous readings(have one I owe ZoldMan for) but the sensors are roughly the same measurement(reading)-wise.
04-29-2004, 07:06 AM
#17
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Yep, I think he's talking about the one on the other side too....
..this sensor is only for the after-run system. Some people have bypassed (jumped) this sensor all togther with no ill effects.
04-29-2004, 07:11 AM
#19
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I've been wondering that too. But I really think it fails do to heat and...
...lack of use. The 5000T's run an idential pump (in a better location) and they don't seem to have anymore failures than we do. Oh yeah, there pumps seems to run more often.
04-29-2004, 07:12 AM
#20
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Yes....it's run off a system that's only active for 10.....
..mintues after the car is turned off. I know of at least one person on here that actually bypassed the sensor (jumped it) with no ill effects.