ECMlink SD+E-85+1450cc= setup and tuning issues

[1995gsx20g]

if you think one of your injectors isnt staying closed then prime the fuel pump a few time by cycling the key with the car off then rotate the motor by hand and pull your plugs.. should tell you what cyl

i had an issue holding FP once and it turned out the o ring on the fuel pump wasn't seated properly so it would run fine but leak down in less than a minute after i shut the car off

 

[Boomdeeze]

I pulled the injectors already and shipping them out to FIC to get the tested. I also bought an easy tune box to help the injectors out.

 

[Boomdeeze]

Well the injectors were checked by FIC and nothing is wrong with them so I'm back to square one. Anyone see anything wrong with my tune to cause it to be so rich it dies out?

 

[MY1GDSM]

Did you ever try Using the Values I suggested from the Fic-bluemax-1450cc-tuning thread an in the Way I suggest there? Also As I said in that thread I don't see why you would need a Injector Box... .

 

[Boomdeeze]

Did you ever try Using the Values I suggested from the Fic-bluemax-1450cc-tuning thread an the Way I suggest there? Also As I said in that thread I don't see why you would need a Injector Box... .

People say its hit or miss with the 1450's to get great idle and cruise so I'm just eliminating that chance and got a EZ tune box. My injector resistor box may be going out, I tested the coils and they were all 6.9-7.1 and they are suppose to be 5.5-6.5 so I'm tonnage grab a new one quick. I am subscribed to that 1450 tuning thread and have read through it a few times. When I get my injectors back, I will try what you have suggested and see how it turns out. Thanks for the help.

 

[Imback]

This^ My global is around 50 or so and that's only because im on e85.

 

[Boomdeeze]

My global is like 49 and I'm on e85 too

 

[Imback]

Your dead time is way off then. Mine is around 770 if i remember correct.

 

[Boomdeeze]

Your dead time is way off then. Mine is around 770 if i remember correct.

I have my deadtime in the 400's and it's still rich, going up to 770 would only make it worse.

 

[Imback]

You need to adjust your sd table specifically the cells used while idling.

 

[Boomdeeze]

Well I installed the easy tune box and I can now sit there and it will idle!!!! I am a noob when it comes to tuning SD though and I have read through the ecm wiki but im still lost. How exactly do I get the cominedFT to 0% with SD and airflowperrev? Its kinda sluggish and stumbles a little when trying to rev also. Another issue is when I put it in gear and move a little she dies out and now threw the check engine code on injector circuit malfunction in cylinder 2 but only when I try moving. Here's the start up log:

 

[Imback]

Un check ground timing connector to ecu. Then post a idle log with the car warmed up

 

[Boomdeeze]

Here is one with it unchecked and as warm as she gets at idle.

 

[gofer]

Well I installed the easy tune box and I can now sit there and it will idle!!!! I am a noob when it comes to tuning SD though and I have read through the ecm wiki but im still lost. How exactly do I get the cominedFT to 0% with SD and airflowperrev? Its kinda sluggish and stumbles a little when trying to rev also. Another issue is when I put it in gear and move a little she dies out and now threw the check engine code on injector circuit malfunction in cylinder 2 but only when I try moving. Here's the start up log:

Good to hear the Easy Tune Box helped fix your idle issues, now you need to fix your tuning headaches.

To get CombinedFT and AirflowPerRev where the need to be (or close) the first thing you do is make changes to your injector global/deadtime that make sense for your injectors. BM 1450's on E85 your globals should be around -53% (about a 970cc injector) and most run a deadtime of 550μs. Then move onto your SD VE table, the below .PDF explains it pretty well.

Go to step 7 ---> How To Tune a 1G V3 SD ECMLink with no MAF

That injector driver circuit malfunction DTC means an open electrical connection in the #2 injector, the injector resistor, injector wiring, or the ECU. I'm not sure how the Easy Tune box comes into play on the injector circuit but it would seem that that too could cause that DTC.

 

[Boomdeeze]

Good to hear the Easy Tune Box helped fix your idle issues, now you need to fix your tuning headaches.

To get CombinedFT and AirflowPerRev where the need to be (or close) the first thing you do is make changes to your injector global/deadtime that make sense for your injectors. BM 1450's on E85 your globals should be around -53% (about a 970cc injector) and most run a deadtime of 550μs. Then move onto your SD VE table, the below .PDF explains it pretty well.

Go to step 7 ---> How To Tune a 1G V3 SD ECMLink with no MAF

That injector driver circuit malfunction DTC means an open electrical connection in the #2 injector, the injector resistor, injector wiring, or the ECU. I'm not sure how the Easy Tune box comes into play on the injector circuit but it would seem that that too could cause that DTC.

Thanks alot man, I will try and get those inline. Do you think the DTC could be caused by the resistor pack since when I tested it, it read 7.0 when it should be 5.5-6.5? And what's weird to me is, it only happens when I put it in gear and try to move.

And under the injbatteryADJ tab in diresct access, I had to make them all equal to the 19v which is 495. Do I have to adjust that value at all during this or does it stay the same?

 

[gofer]

There are (4) different resistance checks that are made when testing the resistor pack, was it all that read 7Ω or just one of them? The #2 injector circuit goes through the resistor pack at pin 5.

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Did the #2 injector DTC appear before the Easy Tune box was installed?

Your InjBatteryAdj DA table should not look like that, not at all. Those deadtimes are based off of battery voltage and ADDED to the existing deadtime you have set in your fuel tab. Looking at the last log you posted your car idles at 13.5v and your fuel tab deadtimes are 435μs. By going into your InjBatteryAdj table in DA, at 13.5v your deadtimes are 495μs, this value is added to 435μs though. So in reality you're running a deadtime of 930μs at that voltage.
You should reset your InjBatteryAdj values to stock (right click and hit reset) and just make adjustments to your fuel tabs deadtimes to keep things simple. The reason why you need higher deadtimes at lower battery voltages, which you'll see with a stock InjBatteryAdj table, is because when battery voltage drops your injector deadtime needs to INCREASE to keep FT's stable.

 

[Boomdeeze]

Yes I checked them all and they were all 7. Today when I was getting my combknedFT and airflowperrev in line, my check engine light came on and now its #3 that threw the injector circuit malfunction. I take it my resistor pack is causing this? And I never threw this code before I installed the EZ tune box.

And about the injBatteryAdj, I was told that I need to set it to all even because the easy tune makes it so there is no fluctuating in voltage to the injectors. Makes it easier to tune because the voltage is constant to them because of the box, please correct me if I'm wrong.

Here is what I'm refering to with the easy tune box and setting the InjBatteryAdj:

http://www.dsmlink.com/forums/showthread.php?t=45954&highlight=easy+tune

 

[gofer]

Just finished looking into this further since I have yet to play with a DSM and an Easy Tune box. Seems like thats the correct way to do things though, found this post from Tom.

I forgot to mention the benefits of setting the battery adjustment table to all one value. Definitely cool not having to deal with changes to deadtime as battery voltage fluctuates (basically eliminating this effect).

The device is basically just increasing the voltage provided on the hot side of each injector from 12v to 18v. By regulating the voltage for you, changes to voltage at the battery are not so critical to dialing in the injectors.

You might have a funky Easy Tune box if those injector circuit malfunctions never happened before you installed it. You might consider calling FIC directly and tell them your situation and see what they say. Every time I've called they've been more than helpful with everything.

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After further research I found something about the injector circuit malfunction issue you're getting too. Seems that its typical and you just need to disable the DTC in Link to prevent it from popping that CEL, similar to the misfire and the 1g CAS.

Injector#4 Malfunction?

This is in that thread but if you missed it, this is how you'd disable the injector DTC. ---> DTC injector malfunction disbable

 

[Boomdeeze]

Sorry for the long wait in between my response. I got it to idle now after I fixed some minor issues but have a few things that now baffle me.

No matter what I do, the combinedFT wont adjust to 0%. They are either stuck at 16.8 or 17.8.

The idle is all over. Put in the working ISC and made sure their were no boost leaks. Anything in my log that you can see in which would cause this?

Partial throttle is so jerky and is hard to cruise. Seems to be fine when I go 3/4 throttle but just partial causes it to jerk.

Heres a log:

 

[gofer]

The only thing going to cause your car to idle that lean is a bad vacuum leak, your car is in serious need of a BLT.

 

[Boomdeeze]

Well I did one after I installed the new seals. I guess some may have formed since then, I will do one when I go back home again. Thanks gofer

Wait if you look at my wideband, im not that lean. Just the EST is lean.

 

[4g63t]

Where did you come out with this. My set up seems to be acting the same.