First start!! NO START BLUES!!

[MadRatt]

So I was going for my first start of my project. 2003 s10, p59 ecu, 2012 5.3 block, Ls1 intake and heads, 2004 Z06 cam lifters and springs, 92mm TB, SW long tube headers. Lingenfelter converter box for 58x to 24x.

Crank no start. Have fuel at rail. Used starting fluid to CAI and she popped for a split second. So I have spark. I believe I have no fuel thru the injectors. Injectors and intake sat for awhile could be plugged? But all of them? wouldn't it just run bad not just nothing? Am I missing something that the injectors aren't firing? I'll attach my log file while trying to start it and my tune file. If someone could look and tell me what you think I would be ever grateful. I am new to LS and HPT. I am not new to EFI or motors in general.

Thanx again in advance.

[MadRatt]

Ok so my platform type was still set to ST which was for the S10 I looked at a stock tune for a 2004 Z06 and it is set to Y. So I set mine to Y and she started! Runs like shit thou. Now I need to figure this out.

Its running rich at idle but I guess 70ish degrees IAT and ECT is probably causing that. But it seems to be only running on half the cylinders. and when I try to rev it up it sounds like its missing and want to die. I don't have any pipe after the headers at the moment but that shouldn't effect if its missing or not? My O2's aren't showing on the scanner either. I show voltage to them but nothing in the gauge is moving. Is this because its in closed loop until the ECT warms up? I just can't run it for long the way its running. Afraid i'm going to damage something with it missing so bad.

Can someone look at this recent log file and let me know what you see?

[5FDP]

You'd likely want it to run as a GMT-800 and not a corvette because the corvettes still use DBW among other things.

The headers won't change much on the misfire but will surely cause the o2 sensors not to read right. They need the 18-20in of pipe after header. And they run in open loop first, then switch to closed loop at operating temp.

[MadRatt]

You'd likely want it to run as a GMT-800 and not a corvette because the corvettes still use DBW among other things.

The headers won't change much on the misfire but will surely cause the o2 sensors not to read right. They need the 18-20in of pipe after header. And they run in open loop first, then switch to closed loop at operating temp.

Thanx for responding 5FDP
I'm getting closer. Got it running better but have a random misfire code coming up. I just found the spot under engine diagnosis that has the misfire menu and changed a few things to match the corvette parameters. Going to go out to the shop and try that.
And i'll change over to the GMT-800 and see how that works. Tomorrow i'll see if I can find some 3" pipe to add to the headers so I can get some proper AFR going.
What is the temp that the O2 sensors start to show on the scanner?

Thanx for your help and pointing me in the right direction.

[5FDP]

The o2 sensors are working, they just don't report air fuel ratio. They are narrow band sensors than only switch rich and lean of stoich.

The fuel trims won't start until closed loop if that is what you mean. That is determine by whatever the calibration has it set at. You can look at the closed loop enable ECT vs IAT table under the o2 sensor tab. In your case it's 93 degrees give or take a bit, then it takes all the way to 131 degrees before the long term trims are active.

[mbray01]

So first off, are you saying you are using the s10 ecm, is it the 2.2 ecm, or the 4.3 ecm. They are different. Secondly if it is the 4.3 ecm, i am pretty sure you cannot just turn the platform to a different car and make it work correctly. I am pretty sure it needs to be flashed with a v8 operating system

[MadRatt]

The o2 sensors are working, they just don't report air fuel ratio. They are narrow band sensors than only switch rich and lean of stoich.

The fuel trims won't start until closed loop if that is what you mean. That is determine by whatever the calibration has it set at. You can look at the closed loop enable ECT vs IAT table under the o2 sensor tab. In your case it's 93 degrees give or take a bit, then it takes all the way to 131 degrees before the long term trims are active.

Got it. But don't the O2s show working on the scanner gauge? There is a O2 1 and O2 2 bar graph next to the LTFT Bar graph.
I tried switching to the GMT800 and it would only start for a second then die. switched back to the y platform and fired right up. Still have a P0300 code for random misfire (using original coil harness and coils, new wires and plugs)and a P1637 which I believe something to do with the alternator? My gauge on the dash says over 14volts but I have the batt. warning light on. New OEM Corvette alternator. CPW Harness
I don't know. I guess I have some studying to do and figure this out.
Also the tach is off. The scanner says 650rpm and my tach is like 1100. Going to have to research the proper setting for the tach. Thought I had it. lol
I like learning new things but I didn't expect to have to learn this much on the first fire. Back to the books. (google) lol

[MadRatt]

So first off, are you saying you are using the s10 ecm, is it the 2.2 ecm, or the 4.3 ecm. They are different. Secondly if it is the 4.3 ecm, i am pretty sure you cannot just turn the platform to a different car and make it work correctly. I am pretty sure it needs to be flashed with a v8 operating system

Hey Mbray01,
I'm running the 4.3 ecm and believe I swapped all the necessary tables over. I pretty much did a compare file from a 04 Z06 and made all the engine stuff match.

[mbray01]

Swapping tables isnt the same thing. I am pretty sure(i could be wrong) but i believe it wont run the v8 engine with the v6 operating system. (only trying to fire the coils and injectors 6 times vs 8. This could be likely why the engine feels like its not running on all cylinders as its likely not, and the ones that are running arent being fired at the correct time

[mbray01]

You need to perform an actual "write entire" of a v8 operating system

[MadRatt]

Mbray01 thanks for your input. The more info I get the more I learn. That being said:

"Write entire" even thou the P59 ecu is a V8-V6 ecu? I believe It has all the info already in it. I chose V8 and 5.3l from a drop down menu which then showed me all the v8 timing and injector firing as a v8? So to be clear even with all that I need to do a "write entire" so it will take hold? Just so I don't do something I will regret, can I "write entire" even if I don't need to? To make sure that that isn't the issue? I have no problem doing it if its not going to hurt anything if I didn't need to. It says that is a brickable move when you choose it. I did the compare and changed everything that way because it didn't even give me the option to segment swap the engine info. I looked at another vehicle and it would allow me to segment swap that one. I'm assuming because the 04 vette used the same P59 and everything was already there? Still learning this stuff. The more info the better I understand.

Thanx again for any info you got.

[MadRatt]

Was responding above from the garage waiting to get to operating temp and about to do the crank relearn. Did that and it cleared the misfire P0300 code then after turning it off and letting it sit a minute. Fired it back up and the misfire code came back.
I noticed in the special functions of the scanner that you can do an injector cut off test. So I did that and 1-7 all had a noticeable drop in idle but #8 did nothing. So I assume this means that I am firing all cylinders and i'm not getting fuel of spark at #8. That might be my misfire. So after dinner I think I am going to swap injector 8 with a different one and see if it changes. I show in the scanner that you can pass/fail the coils and all the coils are pass. That being said, I know it don't mean I have spark. Easiest test for now is to swap the injector. (That #8 plug is probably the hardest to get to.)

[MadRatt]

Just to recap I did a individual injector cut out in VCM Scanner and #1-7 have a definite rpm drop. #8 no change at all. not even a hiccup. So before I pulled the injector and put in a different hole to eliminate the injector itself, I warmed up the motor and IF temp gunned the header tubes. I also did the carb cleaner squirt test. LOL (fool proof) and I show all are firing except #1!! WTF?!?! So I pulled the injector plug on #1 and performed the cut out test again. Guess what? #1 cuts out! (remember its unplugged) #8 still does nothing. So I checked the schematics for the injectors thinking maybe CPW made an honest mistake and wired it wrong. NOPE all is wired as the schematics show should be. Now what? Why is my #1 acting like its #8? Is there a setting in HPT that I may have missed to get the ECU to know what Injector is which?

I probably should start a new thread for this since the "No start Blues" title no longer applies.

[mbray01]

THE INJECTOR CUT IS FOR THE INJECTORS BY NUMBER, BUT BY FIRING ORDER. INJECTOR ONE IS THE FIRST INJECTOR IN THE FIRING ORDER, THEN TWO IS THE SECOND. DONT ASSUME ITS BY THE GENERIC LS FIRING ORDER, YOU HAVE TO LOOK AT THE ACTUAL TABLE, I HAVE SEEN SO CRAZY ONES. LS IS 18726543, BUT i HAVE SEE 87265431 WHICH WOULD EXPLAIN YOUR 1 VS 8 FIASCO

DOING ONE NOW THAT IS 72654318. SO PAY ATTENTION TO HOW THE FIRING ORDER IS IN THE ECM, THIS DETERMINES THE INJECTOR CUT TEST

[MadRatt]

THE INJECTOR CUT IS FOR THE INJECTORS BY NUMBER, BUT BY FIRING ORDER. INJECTOR ONE IS THE FIRST INJECTOR IN THE FIRING ORDER, THEN TWO IS THE SECOND. DONT ASSUME ITS BY THE GENERIC LS FIRING ORDER, YOU HAVE TO LOOK AT THE ACTUAL TABLE, I HAVE SEEN SO CRAZY ONES. LS IS 18726543, BUT i HAVE SEE 87265431 WHICH WOULD EXPLAIN YOUR 1 VS 8 FIASCO

DOING ONE NOW THAT IS 72654318. SO PAY ATTENTION TO HOW THE FIRING ORDER IS IN THE ECM, THIS DETERMINES THE INJECTOR CUT TEST

Thanx for your help on this Mbray01.
So I did a segment swap from a V8 with same op sys. and wrote entire and Now I have a code for crank sensor relearn and needs to be done. I did the relearn and code went away, then came back with same code. Did it again and same thing. The relearn works as it should and shut the ignition off then back on, but the code comes back after a few mins of idling. And the #8 injector cut still doesn't cut and the order that the #1 lands on isn't 8 in the order. I am assuming you mean the order that is in the firing order of the general engine info. The table shows 43187265 so I think 8 world be cylinder 5? Correct? I'm going to swap that injector to another hole and see if its the injector. But why would the crank relearn code keep coming up? The sensor is from 2012 but only has 12k miles on it. Could it be the sensor is bad? I show in my scanner logs the it seems to be working. after I swap the injector and start it again i'll log a scanner file and post it. If you can look at it for me maybe you can see something i'm missing. The segment swap and "write entire"seemed to be part of the fix. It stopped missing randomly on certain cylinders and now that code seems to be gone. so im making progress but still have these 2 issues to deal with.
Thanx in advance for your help.