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You got to get the codes taken care of first. Just go to the service manual and follow the diag. If you have specific issues ask here and I'm sure someone can help.

This is very lean at WOT. ...

I've been doing this for 23 years now. But only GM.. Having said that.. if this was a ford. I wouldn't want to do it.. even though I've been a professional tuner since 2001.

There is no...

Some OS's do have a voltage multiplier.. not offset.

it's not how I would go about this.. I'd verify the things I said before.

It would be better at this point to start from a completely stock file. Some dumb change someone made at some point could cause a lot of headache down the road.

It's about impossible to just...

I've had LS2 and LS3's pick up 40 + rwhp from 87 to 93.

The cam and compression are not ideal for what you are trying to do. The easiest fix right now would be to run premium.

Can I take a life insurance policy out on this engine?


kidding..... sorta

It's not injector tip temperature..

Simple math. If you go to that correction table you'd have 0.1ms of offset

Injector DC for you at WOT is 11 ms so with that offset that would be 11.1ms ...

The timing is pretty lazy.. are you trying to run this on 87?

Yes.. negatively effects VE.. Only vaporized fuel burns.. All that extra fuel takes up even more extra volume.

side note/ nerd time... the change in charge temp after vaporization between the...

Did fuel pressure come back when you reset the code and restarted?

If they are working.. than great. I wouldn't bother.

There is a well known issue of aftermarket parts just being absolute trash now days. Whenever possible only buy GM parts. Lots of...

In both of those logs the o2's and fuel trims were working correctly

Yes this is likely the cause.

OP I think you should also go back and look at the timing table/ iat compensation stuff. Also I flagged it being pretty damn lean early on. I'd get these things...

I've done some bolt on cammed LS3 stuff that the guys insist on e85. I do think they get close in the ~450's. If I could remember one of their names I could try to find a log to give hard data on. ...

LS3 injectors are 0 280 158 051

Look at this image.. 0 280 158 basically means its a bosch injector. It's not even specific to a certain design/lenght/body

Our shop uses a similar part...

injectors are relatively cheap.. Have you thought about putting another set of LS3's in it? I've made 600+ rwhp NA with them. I think 635rwhp to be exact.. but don't hold me to it.

or he wanted those bing bang boom decels. lol

A lot of the injectors they sell are OEM injectors for some application..

There is not going to be a solution that will automatically work when the cam has so much overlap.

I'd suggest reducing ECM 12480 and increasing ECM 12470. You can find these by searching in...

Just choose ECM/TCM Pedal and throttle body from one OEM example.. Mismatching is where you run into problems.

The final timing is very low.. 7-12 degrees at 135kPa Especially for the boost. Its because of IAT compensation is taking out too much.

I'd have this retuned to be honest. The work is messy.

That part number prefix 0 280 158 is just standard bosch injector PN.. The last 3 identify what injector it is.. but so so many bosch injectors start off with that prefix.

I have a sneaky...

too cold of a plug will usually show up when you crank and move a car a few times without letting it warm and after that it runs a bit rough until you "clear it out"

basically the plug will dirty...

I think the error might be in some other model.. airflow..etc

I think it would be smart to check fuel pressure while the alternator is at 15v vs 13v. One volt could be +20% in fuel pump flow. ...

Good catch on the empty VE table.

The scanner interpolates between points.. It's not a useful feature IMHO.. if you see the data hiccup you'll see the line displays bridge from one to the...