Hi, I have been reading about tuning my 4.3l TBI motor and got winaldl and tunerpro have a chip burner coming in the mail.

Ok to start with i am working with a 69 jeep i swaped a 90 4.3l TBI v6 in
has a powerglide trans.

I am trying to figure out were to start. the motor and harness came from a c1500 pickup 4.3l and the ecm is a 1227747 from a van with a 4.3l

In winaldl i am get running rich code and a drp occured idle is ruff i also dont get any o2 log, blm or int the motor also wont rev past 4250.
do i need to add a vss and be driving to get that info?
The chip has AKMJ on it.
In tuner pro what would be a good bin to start with and what to mod and since i am a carb and points guy i dont know were to start or understand most of the stuff listed to mess with any help would be nice.
also when wiring it up i could not find a park/nutral wire and the has no pin or wire in the harness do i need it?
the van had a auto trans how should i set the new mod for my trans?

 

https://www.thirdgen.org/forums/diy-...i-have-no.html

AKMJ.. OP says a 305 engine in above. I do not find it at Moates nor diy-efi.org? If .bin came from auto trans that is good.

Are you getting flag for CL I suspect not. do you have a functioning NB02 sensor? If so is it heated or not? In logs any sign of voltage shown?

DRP occurred that is good.

Does the BLM-INT show 128 not changing?

Wont rev past 4200. I would not worry about that just yet.

Running rich. What size injectors at what fuel pressure?

 

The o2 came with the y pipe that came with motor am getting a constent .446 from it dosent change thow going to replace it non heated.

injectors size is stock hol tb is stock.

 

Sounds like 02 is not switching. I bet you are stuck in OL. Sensor could be bad. Do you have a CE-SES light functioning. If not you should add it. Does winALDL offer malf codes? I thought it does. Are there any?

Do you have headers? If so heated for sure necessary.

 

I dont have headers still stock. i have a heated o2 sensor laying a round. how would i hook it up?
will it work with my ecm?
Dont have a ses light what pin would it be and dose it go from light to power or ground?

 

Heated makes no difference. I think heated is "on" when engine running only. Maybe another member can exlain which wire to use under dash. I dont have a SM for your ECM. You might want to located the pin outs for it. Must be here somewhere?

 

SES light is on pin A5, other side of bulb goes to +12. Should be a brown/white wire.

 

thanks for the pin #. I am going to go through my harness today i was wondering dose the 7747 use a IAT Sensor if so i do need to add it.
4" open filter element. should i just drill a hole in the base or relocate to a diff spot.
have a link for a compleat pin out.

 

7747 did not use IAT. 8746 its brother did. 7747 = truck 8746 = passanger car

 

http://www.diy-efi.org/gmecm/ecm_info/1227747/

scroll to the bottom

 

Thanks for the help and link.
I have rebuilt my tbi and done some mods and put a super chip in
running a lot better now. Am going to keep reading on tuning
since i plan on building this v6 later and need to make it run right.
when i deside on what i am going to do i well post it.
I would like to get around 300hp here that it is ant to hard to do.

 

what you think about a eaton m90 supercharger?
think it well flow enuff cfm for a 4.3l v6?