Well I'm busy logging away now (thanks Illbill) and apparently I really am retarded. 6.2 - 9.0 Deg
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Well I'm busy logging away now (thanks Illbill) and apparently I really am retarded. 6.2 - 9.0 Deg
showing up on a regular basis. I'll post some more detail when I'm comfortable they are representative. Goup 032 Lambdas at -2.3 / -7.0 so I wouldn't think those were too bad. MAF #s look pretty good too.
What else would you look at? Knock sensor voltage? Certainly no cels being thrown.
Plugs look a little "white" for my liking (then again I'm an old "carbie" kind of guy.)
Tim
'98.5 A4 QMT
K04 PC16
FMIC, new O2, new MAF
What else would you look at? Knock sensor voltage? Certainly no cels being thrown.
Plugs look a little "white" for my liking (then again I'm an old "carbie" kind of guy.)
Tim
'98.5 A4 QMT
K04 PC16
FMIC, new O2, new MAF
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From: Cambridge, MA
might be worthwhile to log your 02 voltages (031) and intake air temperature (004)
It's not completely unorthodox to see some amount of timing pull on pc16. Curious to see if your FMIC is staying within spec (< 50 deg C)
What is your adj. fpr set to? Your trims indicate that you're running a bit rich. Your 02 voltages should show around 0.86-0.87 at WOT.
What plugs are you running?
What is your adj. fpr set to? Your trims indicate that you're running a bit rich. Your 02 voltages should show around 0.86-0.87 at WOT.
What plugs are you running?
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Good info. I'm running 41 PSI, a bit worried going down to 39 (2.7 bar) with my plugs looking
pretty white. Perhaps I'll experiment down to 2.7. That Bosch Adj FPR is a dream to work with.
Plugs are just the stock heat range, single copper electrode NGKs, BKr7Es I believe. Any better PC 16 plugs?
I'll take a peak at IATs and O2 voltages on the weekend. Thanks!
Tim
Plugs are just the stock heat range, single copper electrode NGKs, BKr7Es I believe. Any better PC 16 plugs?
I'll take a peak at IATs and O2 voltages on the weekend. Thanks!
Tim
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Joined: Jun 2002
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From: Cambridge, MA
bkr6e would be the stock heat range. 7e is one range colder
7e is fine for your application.
Sorry if this is a dumb question, but you're adjusting the fpr with the vac line disconnected correct?
The ECU is doing it's job at part throttle and idle. The 02 voltages at WOT will be more telling. Ideally I like the fuel trims to be less than 5% positive or negative, but I know PC-16 isn't exactly the most polished k04 file out there and tends to run on the rich side.
Sorry if this is a dumb question, but you're adjusting the fpr with the vac line disconnected correct?
The ECU is doing it's job at part throttle and idle. The 02 voltages at WOT will be more telling. Ideally I like the fuel trims to be less than 5% positive or negative, but I know PC-16 isn't exactly the most polished k04 file out there and tends to run on the rich side.
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