nfakbc2
Probationary Member
- 5
- 0
- Feb 7, 2012
-
kirkland,
Washington
As you can see in the attached log, my fuel trims are all messed up and the car idling in closed loop the a/f ratio ranges from the high 12's to low 16's. I've messed around with my global fuel (currently running low impedance RC 1200cc's, tried using the value of 1200 in injector calculator as well as 1006 (which is what the injectors are supposed to flow at 37 psi fuel pressure)), played with dead time and also the maf comp sliders to get my air flow per rev around .27 (I'm running a 2.3L). My a/f estimate never lines up with what it should in the max octane table (for example the estimate often shows 18:1 but when I track the data in the max octane map it shows it should be 14.7). Any advice as to what could be my problem/ tips would be greatly appreciated (I'm completely lost as to what could be going on here). Below is a little more info on the car/ info on the engine build.
1). No boost, vac, or exhaust leaks.
Boost leak tested to 40 psi with zero leaks, zero exhaust leaks
2). Verify mechanical timing.
Timing marks all lined up properly.
3). Verify base timing
Base timing set to 5 degrees with timing locked in ecmlink
4). Ignition system
New NGK wires, BPR7ES plugs gapped at .025
5). Motor health
168-172 psi each cylinder
6). Basic throttle body adjustments.
TPS adjusted to .63v, biss screw adjusted to read ~30 while logging
7). Compression ratio
8.8:1
8). Wiring and sensors
Wiring completely gone through and is 100% legit
9). No DTC/CEL codes
No codes
10). Electrical system
Seems to be legit
11). Base fuel pressure and injector values
Base fuel pressure set at 37psi with pump activated through ecmlink
12). Properly calibrated and configured wideband sensor
Innovate LM-2 wideband, sensor located in downpipe 18" down from turbo, gauge reads dead on with ecmlink log, near new sensor, setup the old school way (from what I read) programming the wideband with the same settings as a techedge wideband using the Techedge linear setup, switch over point set at 2.86v after reviewing logs
13). Type of fuel
91 octane premium
14). ECMlink how-to videos
I've watched every video I could find on Ecmlink's website and also every video I could find on youtube 5-10 times each. I've also spent hours and hours reading up on tuning ecmlink (although I wouldn't consider myself to be a very good reader)
Attached is a log of my 1992 Galant VR4 after trying to setup idle. The car has never ran correctly since I purchased it (the previous owner tried to tune the car himself and didn't know what he was doing). When I purchased the car it was running speed density but after many hours of reading many people said it was easier to tune/ correctly setup the ve table using a maf (I had a gm 3" maf siting around out of my tsi along with the plug and play cable (I also wired in the iat and omni 4 bar for logging purposes). The maf is located 12" pre turbo (with the intercooler piping setup I have I could not run it blow through).
Below is a quick list of the build:
4G63 Stroker, 2.3L, bored at 85.5 mm
Stock 100 mm crank (4G64)
MAHLE forged pistons 8.8:1 comp. #MIT130366I23
MANLEY H Beam rods, #14021-4
ACL race bearings (Main & Rod)
ARP Hardware (Head, Main and Rods)
Balance shaft delete
FP 2 cams
1200cc rc injectors
Garrett GT35r bb
Tial wastgate/ bov
Tubular top mount manifold
Magmus sheet metal intake manifold
S90 70mm tb
fmic with 2.5" piping
3" mandrel bent turbo back exhaust
Fuelab fpr
Ecmlink V3 full
Walbro 450 in tank pump
Sorry for the long post, if you made it this far though and have any advice I would really appreciate it!
1). No boost, vac, or exhaust leaks.
Boost leak tested to 40 psi with zero leaks, zero exhaust leaks
2). Verify mechanical timing.
Timing marks all lined up properly.
3). Verify base timing
Base timing set to 5 degrees with timing locked in ecmlink
4). Ignition system
New NGK wires, BPR7ES plugs gapped at .025
5). Motor health
168-172 psi each cylinder
6). Basic throttle body adjustments.
TPS adjusted to .63v, biss screw adjusted to read ~30 while logging
7). Compression ratio
8.8:1
8). Wiring and sensors
Wiring completely gone through and is 100% legit
9). No DTC/CEL codes
No codes
10). Electrical system
Seems to be legit
11). Base fuel pressure and injector values
Base fuel pressure set at 37psi with pump activated through ecmlink
12). Properly calibrated and configured wideband sensor
Innovate LM-2 wideband, sensor located in downpipe 18" down from turbo, gauge reads dead on with ecmlink log, near new sensor, setup the old school way (from what I read) programming the wideband with the same settings as a techedge wideband using the Techedge linear setup, switch over point set at 2.86v after reviewing logs
13). Type of fuel
91 octane premium
14). ECMlink how-to videos
I've watched every video I could find on Ecmlink's website and also every video I could find on youtube 5-10 times each. I've also spent hours and hours reading up on tuning ecmlink (although I wouldn't consider myself to be a very good reader)
Attached is a log of my 1992 Galant VR4 after trying to setup idle. The car has never ran correctly since I purchased it (the previous owner tried to tune the car himself and didn't know what he was doing). When I purchased the car it was running speed density but after many hours of reading many people said it was easier to tune/ correctly setup the ve table using a maf (I had a gm 3" maf siting around out of my tsi along with the plug and play cable (I also wired in the iat and omni 4 bar for logging purposes). The maf is located 12" pre turbo (with the intercooler piping setup I have I could not run it blow through).
Below is a quick list of the build:
4G63 Stroker, 2.3L, bored at 85.5 mm
Stock 100 mm crank (4G64)
MAHLE forged pistons 8.8:1 comp. #MIT130366I23
MANLEY H Beam rods, #14021-4
ACL race bearings (Main & Rod)
ARP Hardware (Head, Main and Rods)
Balance shaft delete
FP 2 cams
1200cc rc injectors
Garrett GT35r bb
Tial wastgate/ bov
Tubular top mount manifold
Magmus sheet metal intake manifold
S90 70mm tb
fmic with 2.5" piping
3" mandrel bent turbo back exhaust
Fuelab fpr
Ecmlink V3 full
Walbro 450 in tank pump
Sorry for the long post, if you made it this far though and have any advice I would really appreciate it!