strange bucking issue
#1
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
strange bucking issue
I have some weird **** going on for the last couple weeks. My logs all look good, with no sign of anything fucked up but the tach drops down like its cracked out, and its driving me crazy. At roughly 2700-3500rpm at <75kpa it happens, and twice today the same thing between 5000-5500 at 100kpa. What else should I look at? AFRs are solid all the way through every cell according to my datalogs.
thanks for the help.
oh, I have a 9093pnp running no maf.
thanks for the help.
oh, I have a 9093pnp running no maf.
Last edited by hustler; 03-12-2008 at 06:33 PM.
#5
i have a feeling your issue is not MS related...
you may want to check your cars grounds, im not sure if the 1.6 cars are at the same location as 1.8 cars, but mine are kind of under the TB and one kind of under the heater hoses, check those and make sure they are kosher
if your grounds check out good, check your plugs and plug wires, your problem almost sounds like a slight missfire...
good luck, i really hope you get it all sorted before your track day
ps-fwiw, your maps look good, a change in 1 degree in timing will not cause these types of issues ( i would hope)
you may want to check your cars grounds, im not sure if the 1.6 cars are at the same location as 1.8 cars, but mine are kind of under the TB and one kind of under the heater hoses, check those and make sure they are kosher
if your grounds check out good, check your plugs and plug wires, your problem almost sounds like a slight missfire...
good luck, i really hope you get it all sorted before your track day
ps-fwiw, your maps look good, a change in 1 degree in timing will not cause these types of issues ( i would hope)
#6
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
i have a feeling your issue is not MS related...
you may want to check your cars grounds, im not sure if the 1.6 cars are at the same location as 1.8 cars, but mine are kind of under the TB and one kind of under the heater hoses, check those and make sure they are kosher
if your grounds check out good, check your plugs and plug wires, your problem almost sounds like a slight missfire...
good luck, i really hope you get it all sorted before your track day
you may want to check your cars grounds, im not sure if the 1.6 cars are at the same location as 1.8 cars, but mine are kind of under the TB and one kind of under the heater hoses, check those and make sure they are kosher
if your grounds check out good, check your plugs and plug wires, your problem almost sounds like a slight missfire...
good luck, i really hope you get it all sorted before your track day
#9
Looking at this part of the fuel map i see a couple things you could fix. If your idle is a little uneasy you should make all of the idle cells the same value instead of jumping around 33 35 37 35. It will idle better if they're all the same when you are using larger injectors.
Do a little hand smoothing as well to make these numbers closer. I don't really care what youre afrs but with that much jump in VE I can understand why there is a stumble around 2700. I could be completely wrong but make those numbers within 2 VE of each other.
Worth a try.
Thread
Thread Starter
Forum
Replies
Last Post
bigmackloud
Miata parts for sale/trade
19
01-08-2021 11:24 AM
Frank_and_Beans
Supercharger Discussion
13
09-12-2016 08:17 PM