Will tuning fix it
Thread Starter
Racer
Joined: Sep 2011
Posts: 452
Likes: 6
From: Pinson AL
Will tuning fix it
I am experiencing a surging while driving at low speeds(RPM) so even at 50 mph I can feel a surging sensation. Is this a tuning issue??
A6 12gs A&A 6lb boost. Thanks in advance
oh yes - tuner adjusted some transmission values and some timing he said as we drove, stopped programmed restarted several times. Much better but it remains.
A6 12gs A&A 6lb boost. Thanks in advance
oh yes - tuner adjusted some transmission values and some timing he said as we drove, stopped programmed restarted several times. Much better but it remains.
Burning Brakes
Joined: Oct 2005
Posts: 1,089
Likes: 82
From: Kauhava, Finland
Is this car with just an A&A kit?
Fairly easy - or I guess it depends - is to put the stock injectors and stock tune back and see if it still surging.
A decent tuner would have checked misfires or error codes, so I guess those were not the problem.
Fairly easy - or I guess it depends - is to put the stock injectors and stock tune back and see if it still surging.
A decent tuner would have checked misfires or error codes, so I guess those were not the problem.
Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
If the engine has an aggressive cam it will never idle like a stock car. Its one of the reasons why they don't come with big cams from the factory...
Thread Starter
Racer
Joined: Sep 2011
Posts: 452
Likes: 6
From: Pinson AL
powerlabs:
I know this might sound crazy but I did keep stock cam because I wanted to maintain good idle and driveability, not a huge fan of choppy idle.
Unreal:
what is correct gap? and plugs were supplied in my A&A kit, 1000 miles old.
Dont want to pop tranny and axles and all but would eventually like to reach 700+/-. I have heard 600 is kinda the high end on stock internals ... so still being conservative. I built the motor so the most vulnerable part(stock pistons) would not break and cost a fortune, not that the other stuff is cheap. did not want to kill a piston and score the block rendering it junk. do you all know where i can get a vacuum diag. to look for leaks?
thanks!
I know this might sound crazy but I did keep stock cam because I wanted to maintain good idle and driveability, not a huge fan of choppy idle.
Unreal:
what is correct gap? and plugs were supplied in my A&A kit, 1000 miles old.
Dont want to pop tranny and axles and all but would eventually like to reach 700+/-. I have heard 600 is kinda the high end on stock internals ... so still being conservative. I built the motor so the most vulnerable part(stock pistons) would not break and cost a fortune, not that the other stuff is cheap. did not want to kill a piston and score the block rendering it junk. do you all know where i can get a vacuum diag. to look for leaks?
thanks!
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Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
What injectors are you running then? My car idled perfectly with an A&A kit, there is no reason yours shouldn't if you have a stock cam...
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
All I was saying it there is no way to say "Yes the tune will fix it" without knowing what the problem is. If it is a problem with the tune, then yes. Then again it could be many other things that the tune won't be able to fix.
Thread Starter
Racer
Joined: Sep 2011
Posts: 452
Likes: 6
From: Pinson AL
I guess I will try another tuner then because I feel this one has no more tricks left. I will mention the speed density approach to him and check his reaction.
what about AHS, the light is on now and had to reschedule for monday at dealer. last week they said communication error but if I turn the wheel all left turn then try to go straight it applies the brakes on the left front then it drives normally. I think installer did a poor job and could hae buggered up something but who knows. Upon reading it seems everything from plug wires to too much salt in your diet sets this thing off kilter
what about AHS, the light is on now and had to reschedule for monday at dealer. last week they said communication error but if I turn the wheel all left turn then try to go straight it applies the brakes on the left front then it drives normally. I think installer did a poor job and could hae buggered up something but who knows. Upon reading it seems everything from plug wires to too much salt in your diet sets this thing off kilter
Platinum Supporting Vendor
Joined: Jul 2011
Posts: 2,078
Likes: 227
My best guess below:
Surge can be fixed with proper tuning.
TCS issue can probably be fixed in the tune also. It's probably a MAF tune with stock MAP sensor and you need to disable code P0108 to No Error Reported.
Surge can be fixed with proper tuning.
TCS issue can probably be fixed in the tune also. It's probably a MAF tune with stock MAP sensor and you need to disable code P0108 to No Error Reported.