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Old 08-30-2015, 11:43 AM   #1
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01 S Rough start

What up ...

Well I have an 01 Boxter S 131k sorta daily driver for past 3 years.
At start up runs bad.... hit the gas a little almost sounds like a backfire.
After a few moments . Everything is back to fabulous.

I have had maf and dirty throttle body issue in the past.
My plan was to remove t body . Clean and replace. Same with MAF.
And hope for the best.... Has anyone else had this issue ?. If so any tips on an issue to look for .
Thanks
MHD

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Old 08-30-2015, 03:20 PM   #2
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Last time plugs were changed?

MAF is first suspect. Dose it smooth out when warmed up?
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Old 08-31-2015, 07:17 AM   #3
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Thanks for the reply
Yes it smooths out in less than a min. The plugs.... great question. That is something I had not replaced . Had the car 3 years now. Guess it would be a good Idea.... My other thought was fuel filter. Just ordered one this past weekend . Plan to change that as well.

Thank you for your help
MDH
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Old 08-31-2015, 07:20 AM   #4
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Isn't the fuel filter internal to the float devise and "lifetime"? I thought that entire float assy had to be swapped. May be later models.

Plugs made a HUGE idle difference to my car. Very smooth. And do clean the TB.
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Old 08-31-2015, 07:29 AM   #5
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looked up fuel filter replacement for 986 and it is under the car . About in the middle . And it is only 50 bucks thought it couldn't hurt to replace it...

MDH
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Old 08-31-2015, 07:32 AM   #6
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I tell you what I do not care for is removing the TB . I have dropped the studs several times trying to get that bottom right one out .
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Old 08-31-2015, 07:38 AM   #7
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Quote:
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May be later models.
Yup.......
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Old 09-15-2015, 04:41 AM   #8
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Update to start up issue...
So I removed the TB and it was clean. Cleaned it replaced. Checked air filter it was clean.
Removed and cleaned the MAF. connected battery started car. It ran like crap /pop stumble stumble pop and stalled . At this point I was concerned. Cleaning everything solved this issue in the past. I remembered I had a used MAF I had purchased on ebay bouncing around the trunk.
Put that in.. Car ran great . Really great. More power , no flat spot in acceleration around 3K like before. Put 220 miles on it in the next two days . NO CEL. Very happy.
I think I will pick up a spare MAF just incase..
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Old 09-15-2015, 06:27 PM   #9
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Quote:
Originally Posted by 2speed View Post
I tell you what I do not care for is removing the TB . I have dropped the studs several times trying to get that bottom right one out .
Take the air intake loose, remove the brace bolt at the bottom of the TB, loosen the two c clamps on the air plenums and rotate the TB upwards to access whatever you need to access. I might be making this too simple.
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Old 09-16-2015, 08:45 AM   #10
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Plugs? Or possibly cracked coils - there could be a bit of residual moisture that goes once the car warms up...

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