DSMLink v3 SD rich? I need help

[Mechman518]

Ok, here is the deal; I built a 6 bolt with all the right stuff (everything in mod list). However, I didn't/don't have a MAF to help me with the VE table. It seems I am very good at keeping vehicles running within the stock range but when it comes to modification, not so good. I can do / have done all the modifications to the engine but I can't seem to get this tuning stuff down. I just need someone to eyeball this log and make recommendations as far as what to change. I think it is way too rich and I also think I have a lot of power left in the engine that I can't seem to get out of it.

Just check over the logs and let me know...


Thanks

Mech

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The mod list on the car is:

ARP main studs
ARP head studs
ARP rod studs,
BC eliminated,
Fidanza 8 lbs flywheel,
ACT 2600 PP and clutch,
New throw out bearing,
NGK spark plugs and wires,
OEM oil pump,
95 EPROM ECU with Link v3 speed density,
AEM 3.5 bar map,
AEM wideband wired to replace front O2 and gauge,
GM IAT,
Eagle rods and 88mm crank,
Wiseco pistons 8.5 comp,
ACL bearing kit,
FMIC,
HKS BOV,
TiAL WG,
PTE 6376E turbo with .82 AR housing,
T3 SS tubular exhaust manifold (wrapped),
3 inch SS O2 housing,
Full 3 inch SS HKS exhaust,
PTE 880 injectors,
Fuel lap AFPR,
Wally 255,
Mishimoto radiator,
2 FAL slim fans,
New radiator cap,
97 engine harness,
HKS turbo timer,
Converted Talon rear to Eclipse rear with high rise spoiler,
Saturn 200 amp alternator,
6 bolt intake,
Short throw shifter.
Slotted and drilled front rotors,
Hawk brake pads,
GSX front bumper, rims, rear hatch, rear bumper, and rear lights with center section
Projector halos with HID

The car still runs like crap; I need bigger cams, better valve springs, and a tune (I don't know how to tune , the car still runs on close to default Link settings). Along with both CV axels, drivers door lock actuator, another condenser, a Shep stage 3 transmission, paint, and a few other things.

 

[snowborder714]

Or you just change the DA settings (SDTempWeighting table) to show you don't have an IAT.

 

[Mechman518]

Ok I set the VE table so that the log shows .26 on AirflowPerRev but I was having mad rich conditions. The stft was -20% so I brought down the deadtime on the injectors and got the FT close to 0. Under no load it goes from +1.06 to -2.5%. and the AFRatioEst and the logged Wb are +- 1-2% of each other. However, when the fans come on the AFRatioEst and the WB start to get further away from one another. I hope this is normal


Here is a 60 sec log of idle.

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Thanks!!
Mech

 

[9!'clipseDOHC]

Ok I set the VE table so that the log shows .26 on AirflowPerRev but I was having mad rich conditions. The stft was -20% so I brought down the deadtime on the injectors and got the FT close to 0. Under no load it goes from +1.06 to -2.5%. and the AFRatioEst and the logged Wb are +- 1-2% of each other. However, when the fans come on the AFRatioEst and the WB start to get further away from one another. I hope this is normal


Here is a 60 sec log of idle.

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Thanks!!
Mech

That looks much better!

Your ISCPosition is 68 though and should be around 30. idlesurge [ECMTuning - wiki]. Looks like you need to adjust your BISS screw. I would do it when it's idling with then engine temp closer to 180-200* so you don't have to worry about the fans.

Did you check your injectors to see what size they are? I see you went with 910 injectors and -50.8% Globals. Remember, this had to be dead on before we can move on.

I'm still not seeing IAT, MAP, or WB on your logs. I think that it is because you haven't assigned a "Display As" under the "ECU inputs" tab. What is your WB gauge showing at idle?

You have two DTC's that need to be addressed. It's hard to tune properly while you have other issues going on.

• 1500 Generator FR terminal Circuit malfunction
• 0505 Idle Control System malfunction

I'm not familiar enough with 2g's to tell you how to address these so you're going to need to start searching.

Hope this helps!

 

[Mechman518]

That looks much better!

Your ISCPosition is 68 though and should be around 30. idlesurge [ECMTuning - wiki]. Looks like you need to adjust your BISS screw. I would do it when it's idling with then engine temp closer to 180-200* so you don't have to worry about the fans.

Did you check your injectors to see what size they are? I see you went with 910 injectors and -50.8% Globals. Remember, this had to be dead on before we can move on.

I'm still not seeing IAT, MAP, or WB on your logs. I think that it is because you haven't assigned a "Display As" under the "ECU inputs" tab. What is your WB gauge showing at idle?

You have two DTC's that need to be addressed. It's hard to tune properly while you have other issues going on.

• 1500 Generator FR terminal Circuit malfunction
• 0505 Idle Control System malfunction

I'm not familiar enough with 2g's to tell you how to address these so you're going to need to start searching.

Hope this helps!

My ISC is faulty, I ordered one and should be in today so that will help. The DTC 1500 is due to the saturn alt install. and the DTC 0505 should be cleared up with the ISC. I have PTE 880's but if I input the data found on DSMlink's site it makes everything crazy rich. For example, if I use the -45 and the 420deadtime I am running -24% on combinedFT and my WB is still up to 12-13:1. I have checked my base fuel pressure and it is 43.5 PSI so it's good and my DA table is set around 14.7. lowering global and deadtime are the only methods I know to get the injectors to deliver the proper amount of fuel.

Thanks
Mech

 

[snowborder714]

Adjusting the VE table is how you adjust airflow. Use this to help get it dialed in.
sdveadjcomft [ECMTuning - wiki]


(Which I actually already suggested for you to do )

 

[Mechman518]

Adjusting the VE table is how you adjust airflow. Use this to help get it dialed in.
sdveadjcomft [ECMTuning - wiki]


(Which I actually already suggested for you to do )

I have the airflow set to show AirflowPerRev @ .26. but it is just very rich, so I lowered deadtime and global. I dropped about 100us on deadtime and lowered global about 4%. Now the air flow looks correct and the CombinedFT looks normal.

 

[snowborder714]

Set global to what it should be per your injectors and don't touch it again. Deadtime can be played with.

 

[Mechman518]

even if I need to take it down to 100 or so? I know the ECU adds 700us to the injector deadtime per the batt voltage table in DA. However, I haven't changed any of the values.

 

[snowborder714]

You can adjust deadtime however you see fit. I think I had to add a good amount for my injectors for some reason.

 

[Mechman518]

ok very good... I will put the global to -45% and lower the deadtime a good amount and see what that yelds... Thanks for the input!!