low vacuum ..no leaks? bad idle
05-22-2013, 01:39 AM
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low vacuum ..no leaks? bad idle
i have a 06 le5 (turbod) ..passed few weeks little things were bothering me and creating random vacuum leaks ..car was running well but had its moments..yesterday i redid it all.dipp stick was really loose so got a new one but that on ..replaced a few cupplers..changed the piping slightly ..and changed my oil
now the car is wayyyyyyyyy worse… only really at idle tho ..vacuum is at like 3 ..randomly it will surge when its not fighting to stay afloat ..and thats when ill have to get on the throttle hard and get her moving ..then its fine and runs up untill i put the clutch in and bomb itll stall right out…first run today i drove it for about 25 min keeping it in gear at all times and mayb from getting hot idk but vacuum came back ..car was fine..turned the car off..not even 2 minutes later i started it back up and it was right back to **** ..makes me think its tuning related but nothing in my tune has changed aside from mayb i had the vac leak when i was tuned but now ide assuming the car would just be more lean .. im lost ..this was a ramble lol.. any help would be awesome ! please ! thank you!
now the car is wayyyyyyyyy worse… only really at idle tho ..vacuum is at like 3 ..randomly it will surge when its not fighting to stay afloat ..and thats when ill have to get on the throttle hard and get her moving ..then its fine and runs up untill i put the clutch in and bomb itll stall right out…first run today i drove it for about 25 min keeping it in gear at all times and mayb from getting hot idk but vacuum came back ..car was fine..turned the car off..not even 2 minutes later i started it back up and it was right back to **** ..makes me think its tuning related but nothing in my tune has changed aside from mayb i had the vac leak when i was tuned but now ide assuming the car would just be more lean .. im lost ..this was a ramble lol.. any help would be awesome ! please ! thank you!
05-22-2013, 12:19 PM
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ok i unplugged the maf and the car runs better then it ever has lol ..afr is at 14.7 at idle.. sumtimes gets down to about 12 13 but thats fine..then when boost hits it goes down to 11ish..and vac is a lil low still at like 20.. i also realized i may have over tightened the clamps on the maf sensor pipe and bent it in a little bit..like little dents..maybe thats causing turbulence around the maf ?
05-24-2013, 02:38 PM
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bump….
been running without the maf in and been running pretty fine..just rich of corse ..but i think its weird that vacuum its soo good with the maf off wouldnt it be low with or without if i had a leak? so that makes me think my problem is in the maf….im just amazed that a lil denting in that pipe can make such a difference..
anybodys opinion ?
been running without the maf in and been running pretty fine..just rich of corse ..but i think its weird that vacuum its soo good with the maf off wouldnt it be low with or without if i had a leak? so that makes me think my problem is in the maf….im just amazed that a lil denting in that pipe can make such a difference..
anybodys opinion ?
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