Need Help Asap!!

TYHOGG

TYHOGG

Active member
If there is anyone in the western chicago burbs that can help me get my truck going again, please let contact me asap, I will be whiling to pay (cash or beer) for your time.

Let me fill you in on whats going on. I did a 20g turbo swap, 3 bar maf, ultimate, plugs, wires, cap/rotor, pump and afpf and a couple other things that don't effect the motor. I pulled my ecm to find out my "stock" truck has a ATR Strip chip "A" in it. I pulled that chip and installed the ultimate with the 3 bar. I adjusted the fuel pressue to 50lbs no vac, and installed the vac line. The truck idled ok, but once you get moving it gangs and sputters and almost dies, there is thick black smoke out of the exhaust pipe, i adjust the fuel pressure to take care of the smoke, but the hesitation persisted. I pulled the ultimate and the 3 bar and went back to original setup. NO CHANGE, same hesitation problems. I checked the timming with my light and noticed it was 14* advanced. I unpluged the "etm" and the timming did not change. I tried to adjust the dist. to get it to 0*, but now i can't even find the damn timming mark! I would like to start with a stock chip and work my way from there(if anyone in the area has one i can borow). If there is anyone in the area that might know anything else todo please let me know, any help would be greatly appreciated.

Thanks in advance guys,
Adam
 
jwaller

jwaller

Evil Genius/SyTy Guru
Re: Need Help Asap!!

did you reinstall the atr with the ultimte? is your ultimate installed correctly? did you put the wires back on in the right order? is it a stock ultimate or vortec or heads and cam?

are you sure you replaced the 2 bar MAP with a 3 bar MAP and then swapped back when you reinstalled the ATR chip.

what is an ETM???
sounds like your balancer may have moved if you say it's 14* off.
if it ran good on the atr there is no reason why it wont do it again. you have to have a stock chip unless you damaged the ATR one.
 
sy538

sy538

New member
Re: Need Help Asap!!

Maf = mass air flow, doesn’t apply to sytys
Map = manifold air pressure sensor, used in speed density systems (sytys)
When you say pump you mean fuel pump, right?
Afpr = adjustable fuel pressure regulator
Search for “piston stop” and you can find out how to set timing
What is etm?
You can get a stock chip from the dealership for $60-65

You need a scantool. You need to buy a laptop with a serial port.
PPI Typhoon was making cables for ~$50, not sure if he started making them again or not.
http://www.syty.net/forums/showthread.php?t=27662
http://www.detroitturbo.com/
http://www.akmcables.com/index.htm
http://www.ttspowersystems.com/index.htm <-- almost everyone here uses this
http://www.supportfitness.com/mark/tunerpro/ <-- a few people use this
http://www.turbo-link.com/
http://www.andywhittaker.com/ecu/screen_shots.htm

Do not post the same message in more then 1 forum. The other one will probably be gone by the time you read this.
 
TYHOGG

TYHOGG

Active member
Re: Need Help Asap!!

the "etm" is on the label on the fan shroud. It says you must disconnect the tan wire with balck stripe to set the timming and reconnect when finished. it is located under the glove box near the ecm. The label also states with the wire disconnected it should be set to 0*.

Sorry typo i ment 3 bar map.
And yes i installed a walro 255 from rpm, but that was installed some time ago.

The ultimate i bought from another member here on the board. It is supposed to be for stock injectors/heads/cam. I got the install instructions from the website.
I did reinstall the 2 bar with the atr, but have the same problem. I disconnected the battery and made sure i grounded myself before i even handled either of the chips.
I didn't clip the maps into the harness so i could swap them out easy. The 2 bar has the orange connector, while the 3 bar is black, right? Unfortunatly i bought the truck it did not come with the stock chip.
I know the truck hasn't run right since i bought it, since i was doing the upgrades i figured now was as good as time as any to get it running to full potential.

From what i can figure the firing order should look like this right?
1 being the front of the dist. towards the intake manifold.

1
2 6
coil
3 5
4

I'm really can't figure out whats going on here.


Thanks,
Adam
 
TYHOGG

TYHOGG

Active member
Re: Need Help Asap!!

Scan tool is the first thing on my list, I'll be purchasing it tomorrow from Detroit turbo. Hopefully it can help me figure out whats going on.
 
G

GM TURBO

Sell Out
Re: Need Help Asap!!

Adam,

Did you piggyback the ATR chip on the ultimate?

I have an 3-bar chip we can use for troubleshooting. Will the truck drive now?

I don't have anything going on Saturday morning or Sunday afternoon if either of these work for you.
 
SonomaGTlover

SonomaGTlover

Doghouse Member
Re: Need Help Asap!!

sy538 said:
The more I think about it the more i think it is your plug wires being crossed. Will pretty much cause all of your problems. My truck idled fine on 3 cylinders.
http://www.whitetyphoon.com/firing_order.html
Click to expand...
I'll 3rd the wires being crossed. I have a Sonoma GT but I'm sure the orders are the same so here is how mine is.

When I had mine apart I labled mine in a little different manner. I marked them drivers side and passengers side front, center and rear with the front being #1. I can't remember off hand the piston numbers of each but I know that going around the cap from #1 in a clockwise direction (toward passengers side)....

1 being the drivers side front piston actually kinda pointing toward #1 cylinder.
then it goes around as follows...
Passengers side rear (6?)
Drivers side rear (5?)
Passengers side center (4?)
Drivers side center (3?)
Passengers side front (2?)
& back to Drivers side front (#1)
Obviously the coil is in center.

Firing order I believe is 1,6,5,4,3,2

One more thing, the plugs at the base should be coming out the rear of the cap toward the drivers side.
 
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TYHOGG

TYHOGG

Active member
Re: Need Help Asap!!

I got it running again! had to install a new starter (bendix crapped out on me), Thanks for the help guys the wires where 1 off (i had 1 where 6 should go). It runs, but not good. I noticed the red led light (knock light i believe) on the ultimate stays solid the entire time, is this normal or is it supposed to blink or be off? Also it runs fine till it starts to build boost, then it starts to gag again, when it comes down to idel it pours black smoke out the exhaust. I have the fuel pressure set to 50lbs with the vac off, and it drops right to 40 with it on. I lean it out to about 35lbs with vac on and the smoke stops but at idle the Check engine comes on. I'm ordering my datamaster tomorrow before i have to head into work. But anyother help in the mean time would be greatly appreciated.
 
TYHOGG

TYHOGG

Active member
Re: Need Help Asap!!

I may have found the problem. I re-read the instructions for the install of the ultimate chip. Since my truck did not come with a stock chip i did not piggy back the atr chip on the ultimate. I pluged in the ultimate board with out piggy backing what looks like it should be the stock chip. This might be causing all my problems. Only thing is i don't have a stock chip since my truck didn't come with one. Anyone know where i can get one?
 
TYHOGG

TYHOGG

Active member
Re: Need Help Asap!!

I have been driving the truck with everything corrected. The only problem is that it seems to be runnig rich no matter what i do. I have adjusted the fuel pressure (no change), timming should be held through the ultimate. Could the ultimate and the Atr "strip A" chip some how be messing each other up by throwing off the timming? This is the only other thing i can think of at this point. I want a stock chip to test it, but the truck came with the aftermarket. Does anyone know the number for a stock ecm memcal? Or have heard of this probelm happening before?
 
chelo

chelo

filthy sy
Re: Need Help Asap!!

My truck runs good but also has that black rich smoke when i accelerate. Although i do not get a blink on the led. Sounds like similiar symptoms. I have a stock chip too.
 
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