88TransAmGuy

iTrader: (3)

Got this programmed months ago. I told the guy it was for a 1993 5.7 L Roadmaster motor. Gave him all the specs from A-Z.Finally after getting the car plated and driving it,it surges like a ****,it runs REALLY rich,the idle changes even after being set,and im getting 11 miles to the gallon. I get 134 miles on a tank. Thats ridiculous. From what ive read on here,the guy just pretty much programs it with the Caprice police car specs? I guess everyone sends the chip back. Im getting a data log as soon as i get my ADL cable. Pay day monday(: I have a short video of just what it does. It irritates the crap out of me.More so that me and my dad put SOO much work into this car and its being held back by a damn chip Lol. What would you guys do? After i post a data log you guys should probably be able to run me in the right direction.

http://www.youtube.com/watch?v=rGRQh...ature=youtu.be

-Dylan N

ninetyone

iTrader: (2)

I would buy the $60 ALDL cable and download TTS Datamaster and datalog the car. Then email him your log and it should be alot easier for him to burn the chip for you. You will need to obviously send your chip in also.

305sbc

iTrader: (3)

I'm curious what method you used to determine that this is a chip calibration problem instead of a mechanical problem ?

Is it going closed-loop normally?
What is your AFR at the tail-pipe?
What is your BLMs?

Does the fueling or the IAC counts change when the engine surges?

If you replace with a stock chip does the problem go away?

88TransAmGuy

iTrader: (3)

When the stock chip is in its fine. Just dies fast cause its a 305 chip. so it doesnt get enough gas. And it loops fine and shifts fine and runs when youre going.As soon as you stop it surges and runs rich constantly. Everything on my car from the motor to the tail pipes is all new. Spent 300 dollars on the exhaust alone.

305sbc

iTrader: (3)

That didn't make a lot of sense to me, the part about the stock chip is fine, but it dies.
You're not running exhaust headers are you?

88TransAmGuy

iTrader: (3)

Yes im running headers.Im sorry im dreadfully confused.Ill ask my dad what its doing. The stock chip makes it run and idle fine,and you can actually set the idle. But since its set for different size injectors,it runs lean cause its a chip from the old 305.

Tuned Performance

iTrader: (92)

What ECM are you using? Did you inform mr Harris of that? If not maybe you are trying to run the wrong definition in your ECM. Should like this post should be in the tbi or diy prom section. Is this a 1228746 were talking about?

88TransAmGuy

iTrader: (3)

No i have the 1228063. I have an 88 Trans Am which has the really weird computer. And no i havent talked to him yet.I dont want to til i data log.Im ordering the cable monday After i get my paycheck

305sbc

iTrader: (3)

How lean? what is your wideband-O2 reading for lean?

The ECM has a good deal of correction ability on the fuel, so a stock 305 chip will be able to correct the fueling enough for a 350 engine, especially so if you are running the correct injector size and have the ability to adjust the fuel pressure.

FYI, I have seen many TBI systems that like to drop out of closed-loop at an idle. One reason this will happen is that the O2 sensor is not staying hot enough due to exhaust headers. A heated O2 sensor will often stabilize closed-loop during idle.

You really need to datalog first to find out what is really going on before acting though.

ninetyone

iTrader: (2)

How do you know it is running lean? If it is running lean, that means fuel is being pulled out. Running lean being the end result of course. If it is "running rich" then fuel is being added by the ecm.

88TransAmGuy

iTrader: (3)

Yeah i know im very eager to data log and find out all of this. My car has really never been heated all the way.so its usually always in open loop.After the motor swap,we just used the 160 degree thermostat
that was in the intake.Im actually leaving right now to get the stock one. Im sorry that i dont know more.Ill have my dad explain it to me later. It all confuses me as you can tell.

Tuned Performance

iTrader: (92)

I would do a swap from 1228063 to 1228746 and use a lo5 tune. Hope you didn't pay much for the 2732 from tbi chips you could have bought a burn2. You might want to see if he will take the erom back.

ninetyone

iTrader: (2)

then if he bought a burn2,it may be months before he is able to get his car on the road. You have to learn how to tune first. Someone is better off getting a chip burned and then learning a little from that first.

88TransAmGuy

iTrader: (3)

Hey guys i got all my equipment for data logging.except none of the programs have the 1228063 ecm option? what do i do

305sbc

iTrader: (3)

8063, 7747, and 8746 ECMs are generally classed together, so the datastreams should be similar enough that you could start with one of those, and modify from there to log what parameters you want to look at.

88TransAmGuy

iTrader: (3)

Im using the 8746 computer setting and im only getting a handful of readings. Nothing from the o2 sensor,temp sensor or anything like that. Is this normal? Just wondering.its my first time doing thjs

ninetyone

iTrader: (2)

what software r u using?

88TransAmGuy

iTrader: (3)

WinAldl

ninetyone

iTrader: (2)

try TTS Datamaster DM35xE6 file, look at this link http://www.ttspowersystems.com/DataM...ownloads2.html

that file is for Lo3 and Lo5 tbi light trucks with 4l60e transmissions,it may work

88TransAmGuy

iTrader: (3)

Ah alright thanks ill be sure to check that out! heres a little of the only data log i have

305sbc

iTrader: (3)

That doesn't look like it's working.
I would try TunerPro for datalogging.
At least then you have more control over the parameters and how they are read/converted. There should be some decent ADS files out there for your application.

88TransAmGuy

iTrader: (3)

I have tuner pro and my cable doesnt even show up.I changed it to the right com. Ill try again tomorrow though

ninetyone

iTrader: (2)

I have never been able to connect with Tunerpro either. Datamaster no problem tho.