The timing is pretty lazy.. are you trying to run this on 87?
Type: Posts; User: Alvin
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...
The fuel trims could be closer. You could sneak some timing in the main spark table. I'm not sure what type of transmission but if it isn't optimized to stay locked up in the highest gear...
You really need a wideband with a cam like this.
You should also log short term idle trims and long. STIT and LTIT
I've had good luck wiht the Deatschwerks injectors.
I didn't see where you got on it all the way but what you showed looked lean and with very low timing for the amount of boost.
I'm sorry I don't want to beat you up on it... but it doesn't look...
A longer log might help diag. I recommend 15 min
That's what I said... traditionally yes.. but on gen 4 it might not. I've had more than 2 now act like vats issues and it is where the cam sensor wiring was off. No cam codes. It will fire and...
The problem is PIN A B C are swapped around in that jumper harness that a lot of GEN 4's come with. The pinout to that connector could be correct..but is it changing or should it change though that...
be sure to delete the orignal map sensor pid when you do this.. Only have 1 in your list.