Need help deciphering '7747 data logs

[57 Handyman]

Anthony:

Yes, if I remember correctly, the fuel pump I installed was a stock replacement. Glad you can see and confirm that there is too much fuel. Interesting that there isn't a code being displayed for that.

I don't have any plates so haven't taken truck on road for longer data log. Also, Hawaii requires all vehicles have annual safety checks as well and those requirements need to be met before runs on the highway are possible. Both are current barriers but I will try to figure out something. When you say the logs need to be longer, should those logs also include varying levels of RPM and WOT for a few seconds maybe? Do you think I could cheat and simulate those conditions without taking it on the road? But I guess, there also should be examples of shift points to really get this tuned. This certainly is a work in progress!!

89S10_Project:

Your idea of doing an adapter (2 black connectors on one end and red/blue on other) is exactly what I have done myself. It all makes so much sense to have one of those so as to be able to switch back and forth between PCM to ECM in the event of a problem. Or like in your case, have access to a daily driver. The dilemma or problem I have run into is with using the pin out diagrams/listings shared on this site, there appears to be a problem since I can't get the motor to start let alone run. Thus far, the first problem appears to be with the fuel circuit since the motor will fire and run if I use starter fluid or pour fuel into the TBI.

I feel your pain regarding header bolts backing out; that is always a problem. I suspect at some point I will have to confront that issue myself. Regarding the exhaust pipe on my ride, I bought a new 4.3 Y-pipe and settled for a single exhaust. Besides, the gas tank on the driver's side represents a major stumbling block if opting for long tube headers and true dual exhaust. So, my installing polished-ceramic, JBA shorty headers was not based on performance enhancements but just bragging rights and WOW-factor in engine compartment. Also, as another adolescent move, I installed an exhaust cut-off right behind the cat converter and in front of my 60-series Flowmaster muffler. To make room for the muffler and cut-off in close proximity, I had to angle my muffler a bit so thanks for the tip about cookie sheets from Walmart serving as heatshields...I may look into that. It never dawned on me to deal with exhaust heating up the cab since my truck is at stock 4x4 height.

Are we having FUN yet???

[ony]

it should have picked up the egr that I forgot to disable so it really hadn't run long enough to pick up codes.you are going to put that zif socket in one or the other ecms and plug the ap in. pretty basic, wont idle add 100 rpms. if you wish when you get it hooked up I will call or you call me with tp I think you have to comitt change with tp.it's instantaneous once it's commited. or get a long data log and post it I will change your file and repost it almost as fast, somehow eagle mark was tunning peoples things and he wasn't there. handy ididn't mean that as it sounds[you need too install the zif socket].he was tuning via host pc and with2 for instance of tuner pro open one to change bin files one to data log.

[57 Handyman]

Anthony,

Today, I successfully installed a modified 28-pin ZIF based on Dave W's instructions in '7747 Flash Chip Conversion (27SF512). Kept my fingers crossed that I had NOT fried anything in the ECM while desoldering the 24-pin socket and soldering in the ZIF. I lthen loaded an EEPROM that I had burned with the AKDW bin. I really didn't know what I was doing when I made two mods...hi way lean and EGR delete. Engine started and ran fine; I did several start-ups to get the ECM to "learn" whatever it needed. After a few minutes with temps up over 150 degrees and idling around 750, the idle dropped and motor died. I restarted a few times with the same results.

With the 28-pin ZIF installed, I will now be able to do emulation but need to do some serious reading to figure out what exactly I need to do. Don't want to fiddle around without knowing what I am doing.

Thanks for your help. I will be packing up and returning all of the stuff you've been so kind to send. Hope your wife is doing better!!

[ony]

handy glad you are making progress. try plugging in that data log cable I first sent and see if the ftd driver will pick it up, if it does you can data log an eluminate at the same time. my wife went back to texas to see her old doctor he worked on what is wrong with her about 6 years ago.