Boost Leak Continues...
Banned
Joined: Mar 2000
Posts: 34,209
Likes: 3
ok thats completely wierd.
the first number is idle trims and the second is part throttle.
usually with a boost leak you see +sign and then negative sign.
which would mean LEAN at idle (too much air) and RICH at part throttle (boost leak)->too little air.
you have RICH at idle, too much fuel/not enough air...LEAN at part throttle. BAD!
this thread (i cant believe im doing this) on audizine has a post which suggest your problem is a leak on the FPR line.
do you have a boost gauge tapped into the FPR line? is the FPR line in good shape?<ul><li><a href="http://www.audizine.com/forum/showthread.php?s=&threadid=89514&highlight =lean+rich+leak">audizine link</a></li></ul>
usually with a boost leak you see +sign and then negative sign.
which would mean LEAN at idle (too much air) and RICH at part throttle (boost leak)->too little air.
you have RICH at idle, too much fuel/not enough air...LEAN at part throttle. BAD!
this thread (i cant believe im doing this) on audizine has a post which suggest your problem is a leak on the FPR line.
do you have a boost gauge tapped into the FPR line? is the FPR line in good shape?<ul><li><a href="http://www.audizine.com/forum/showthread.php?s=&threadid=89514&highlight =lean+rich+leak">audizine link</a></li></ul>
Banned
Joined: Mar 2000
Posts: 34,209
Likes: 3
see my post above... (more)
seems like the leak would be in the FPR, check that out.
no need to graph block 003.
A) report your max g/s
B) make sure the throttle angle is at about 100% through the whole range. i.e. if you do a WOT run from 3800-6500 rpm but see the throttle angle veer from 100% duting that time, that means the ECU is overridding you and shutting the throttle plate.<ul><li><a href="https://forums.audiworld.com/a4/msgs/2520105.phtml">https://forums.audiworld.com/a4/msgs/2520105.phtml</a</li></ul>
no need to graph block 003.
A) report your max g/s
B) make sure the throttle angle is at about 100% through the whole range. i.e. if you do a WOT run from 3800-6500 rpm but see the throttle angle veer from 100% duting that time, that means the ECU is overridding you and shutting the throttle plate.<ul><li><a href="https://forums.audiworld.com/a4/msgs/2520105.phtml">https://forums.audiworld.com/a4/msgs/2520105.phtml</a</li></ul>
Thread Starter
AudiWorld Super User
Joined: Oct 2002
Posts: 8,827
Likes: 4
Yes, I have cleared the codes...
No I do not have a boost gauge installed. I cleared the codes before going to do my Caps Run as well and the trims went to -3.4% and 13.2%.
I decided to start from square 1 and look at the spark plugs to verify that they are set to the propper torque per the bentley (30 Nm) Cyl 1 's sparkplug seemed to be slightly more than Hand Tight. Retorqued and I'm going to go back out and try a boost log...
I'll post up the Caps Stuff when I get back...
Thanks again for the help, I really appreciate it...
I decided to start from square 1 and look at the spark plugs to verify that they are set to the propper torque per the bentley (30 Nm) Cyl 1 's sparkplug seemed to be slightly more than Hand Tight. Retorqued and I'm going to go back out and try a boost log...
I'll post up the Caps Stuff when I get back...
Thanks again for the help, I really appreciate it...
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