2001 TT dying at idle (sometimes)
05-18-2018, 05:10 PM
#1
Instructor
Thread Starter
2001 TT dying at idle (sometimes)
I accidentally posted in the non-aspirated 996 section earlier...but..
...my car is doing this thing where it starts and runs like a dream. Then I park and when I come back to my car and start it again, maybe 30 min later, it idles at ~1k rpm, then drops and sputters, catches itself (sometimes) or on 3 occassions it just stalled. Sometimes if it is doing the idle bounce, if i try to pump the gas it sorta sputters a bit. I’ve been reading threads in here and have taken it to AutoZone for a scan (no codes) and no lights. I just bought a Bosch MAF (will hopefully be here in a couple days. Maybe I need to get smart on the idle control valve and/or plugs/coil change too? I’ve seen some people recommend a vacuum test to those that have seen similar issues too? Thoughts/ideas? Thx!
It drives great and has never stalled at a stop.....knock on wood.
...my car is doing this thing where it starts and runs like a dream. Then I park and when I come back to my car and start it again, maybe 30 min later, it idles at ~1k rpm, then drops and sputters, catches itself (sometimes) or on 3 occassions it just stalled. Sometimes if it is doing the idle bounce, if i try to pump the gas it sorta sputters a bit. I’ve been reading threads in here and have taken it to AutoZone for a scan (no codes) and no lights. I just bought a Bosch MAF (will hopefully be here in a couple days. Maybe I need to get smart on the idle control valve and/or plugs/coil change too? I’ve seen some people recommend a vacuum test to those that have seen similar issues too? Thoughts/ideas? Thx!
It drives great and has never stalled at a stop.....knock on wood.
05-18-2018, 05:14 PM
#2
Mine did this same thing. After I replaced the fuel pump, the problem went away.
05-18-2018, 07:38 PM
#4
Very messy. Be sure to run all the gas out. The fuel pump is fastened to a bracket in the bottom of the tank and twists in/out. Mine took the strength of a gorilla to twist it loose from it's mount. If I were you, I'd get this diagnosed by a mechanic who can not only check your fuel pressures, but also check for other things like vacuum leaks, etc. I think Pelicanparts has a how-to.
05-18-2018, 07:51 PM
#5
RL Community Team
Rennlist Member
Rennlist Member
05-18-2018, 08:16 PM
#6
Instructor
Thread Starter
I just watched a vid of a guy swapping it out...didn’t look horrible, but he did have his tank pretty low it looked like. Yeah, maybe a Euro-Mechanic here will be able to give me the quick status. This doesn’t sound like a MAF issue right? I just pulled mine out and it is one of the cheaper versions, so I ordered the Bosch one. I was thinking it would throw a code, since it has stalled from this, but reader said zero faults earlier today. Thx for the info!
05-18-2018, 08:49 PM
#7
I thought is was an easy job. Get below a 1/4 tank and take your time. Pay attention to the float position. If it is a little off your gas gauge won't work properly. It can be easily adjusted by turning it a small amount but you can mark the top of it before removing to put it back in the same place.
I'm not saying this will fix your problem but I had the same exact symptoms.
Good luck.
I'm not saying this will fix your problem but I had the same exact symptoms.
Good luck.
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05-19-2018, 10:27 AM
#8
Instructor
Thread Starter
I thought is was an easy job. Get below a 1/4 tank and take your time. Pay attention to the float position. If it is a little off your gas gauge won't work properly. It can be easily adjusted by turning it a small amount but you can mark the top of it before removing to put it back in the same place.
I'm not saying this will fix your problem but I had the same exact symptoms.
Good luck.
I'm not saying this will fix your problem but I had the same exact symptoms.
Good luck.
hey man, saw some of your discussion on another post regarding your FP swap. Saw you used some Gates fuel line from Amazon as part of your fix, but for what part? Did you do something with the two p/u lines that connect to the back of the pump housing and run down to either side of the tank? Thx!
05-19-2018, 12:45 PM
#9
just remember that theres only room for 1 arm in the opening. so removing the jet pump connectors twisting the basket everything you do has to be done by feel alone and with just a few fingers. not as easy as it looks.
05-19-2018, 01:32 PM
#10
Instructor
Thread Starter
Thanks, I was kind of wondering about that. Thinking about this project is like thinking about a college essay. I’m sure I can do it, but I really just don’t want to...😕
...but then I think about the people at Starbucks checking out my car and then watching it die after I start it. 😖
05-19-2018, 01:49 PM
#11
A couple of thoughts...before you start replacing parts without knowing they need replacing. You need to scan the car for codes with a Porsche code reader (i.e., PST2, PIWIS, Durametric), not an auto zone generic. Has the car been modified at all? Has the ECU been flashed? When was the last time you replaced the plugs/coil pack? Throttle body clean? e-gas reset?
05-19-2018, 02:29 PM
#12
Instructor
Thread Starter
A couple of thoughts...before you start replacing parts without knowing they need replacing. You need to scan the car for codes with a Porsche code reader (i.e., PST2, PIWIS, Durametric), not an auto zone generic. Has the car been modified at all? Has the ECU been flashed? When was the last time you replaced the plugs/coil pack? Throttle body clean? e-gas reset?
Car has been modified. From what I can tell, FabSpeed exhaust/headers, EVOM intake, Bilstein coilovers, possibly upgraded blowoff valves. I seem to remember the Porsche dealership telling me it was flashed. I don’t know if or when the oil, plugs, coil pack were changed last unfortunately. I haven’t gotten to the T/B cleaning or egas reset yet (not sure what that is) as this problem only just happened on this past Thur and Fri.
Bought at 34.2k miles, sitting on 35.2k now.
05-25-2018, 09:59 AM
#14
Cruisin'
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I had my car die while idling and could then never restart. Naturally this happened in Upstate NY about 4 hours north of the nearest shop in Albany. Ended up being my fuel pump, not saying for sure that's the only cause, but I'd definitely look at it.
05-25-2018, 10:46 AM
#15
hey man, saw some of your discussion on another post regarding your FP swap. Saw you used some Gates fuel line from Amazon as part of your fix, but for what part? Did you do something with the two p/u lines that connect to the back of the pump housing and run down to either side of the tank? Thx!
I didn't do anything with the pickup lines.
I hope this helps...
