I am needed help

[virtual1670]

Hey guys its me shaune from calgary alberta

I recently got a new Colbalt 2007 with a used engine 2.0 supercharged i was having issues with the car so i slowly installed all part below after the new engine was installed that i ordered used with 45k on it
the car was having issues while going into boost it just boggs out no power but builds boost to 80kpa and stops all parts below was double checked and all value readings was good but did not fix the issue
If i drive the car under boost meaning in the -kpa it drives fine the car idles fine to only when you get on it this happens

Just wondering if this has happen to anyone else

New timing system Triple checked
New spark plugs
New fuel filter
New Laminova core seals
New injectors
New fuel rail
New sensors and plugs
New manifold gasket
New intake manifold gasket
New fuses
New vacuum Lines for supercharger
New clutch
Everything is new



i will add the tune in the car and the current recording

new recording with bogging.hpl
Shaune Latest ECM - 1.0.hpt

I cant figure this out please help

[blindsquirrel]

All those new parts are suspect until proven otherwise. If it came into my bay I would request that all the original, old parts be put back on before beginning anything and if that couldn't be done, I'd refuse it. That's way too many unknowns for even someone highly skilled and with lots of experience.

If it turned out that none of those new parts were defective right out of the box, or counterfeits, you'd better go buy a lottery ticket cause you're the luckiest mofo I've ever seen.

[virtual1670]

All those new parts are suspect until proven otherwise. If it came into my bay I would request that all the original, old parts be put back on before beginning anything and if that couldn't be done, I'd refuse it. That's way too many unknowns for even someone highly skilled and with lots of experience.

My bad i made it sound like the issue happened after i installed all that stuff. thats not the case ill reword my main post

If it turned out that none of those new parts were defective right out of the box, or counterfeits, you'd better go buy a lottery ticket cause you're the luckiest mofo I've ever seen.

My bad i made it sound like the issue happened after i installed all that stuff. thats not the case ill reword my main post

[blindsquirrel]

Doesn't matter if it was before or after, the way it is now is the way it is. How many of the replaced parts do you figure were actually defective? - compared to - How many of the new parts are defective right out of the box?

[virtual1670]

Doesn't matter if it was before or after, the way it is now is the way it is. How many of the replaced parts do you figure were actually defective? - compared to - How many of the new parts are defective right out of the box?

Okay Well Sorry you have had issues before with defective stuff but me replacing 4 injectors and 2 sensors has nothing to do with the car and what it's doing now. Thanks for the advice i will make sure to keep that in mind

[danmw2003]

A used engine with 45k on it, is not new. How do you know the engine doesnt have a mechanical issue?

[virtual1670]

A used engine with 45k on it, is not new. How do you know the engine doesnt have a mechanical issue?

i had the engine brought in and checked before anything was done to it had compression tested leak down test had it fully inspected before i put it in i didnt want to risk anything i paid 2200$ for this service Got the head checked valves seats it came out good wasnt gonna waste my time and they put a new timing chain kit and water pump on

[danmw2003]

So you had the heads off to check the valve seats? Tore it apart to do a timing chain and water pump? If it was a good engine, you shouldnt have had to do any of that.

[virtual1670]

So you had the heads off to check the valve seats? Tore it apart to do a timing chain and water pump? If it was a good engine, you shouldnt have had to do any of that.

you cant trust people these days so i had a friend that does this for a living bring it to his shop and do the full check i wanted to make sure i paid the extra money i got a discount but yes it was checked so i know internally its good

and sound wasted money but i now know its good for all i know the engine coulda been blasted wasnt gonna chance it


So the issue i am having is when i stay below 0 and into the minus it drives fine as soon as i go into boost it boggs out

So i replaced the spark plugs and got the new intake manifold seal and Laminova seals as they was leaking put it back together it was fine for the day and next day back to the same bogging under any kinda boost but drives good under normal pedal staying outa boost i did check to see if maybe the cores didn't seal they are sealed i used a camera to inspect the inside

[gtstorey]

Have you compared your tune to a stock file? You don't list any performance upgrades from stock, so if it won't run on a stock tune, you have a non-tuning problem.

If it won't run with a stock tune, I would start with verifying fuel pressure followed by confirming part numbers for injectors and map/maf sensors.

[virtual1670]

Have you compared your tune to a stock file? You don't list any performance upgrades from stock, so if it won't run on a stock tune, you have a non-tuning problem.

If it won't run with a stock tune, I would start with verifying fuel pressure followed by confirming part numbers for injectors and map/maf sensors.

So i dont want to lie but. I have a stage 2 on the car 42lbs disc dephi injectors/ 3.0 pulley After trying all this stuff i decided to put the stock 34 inch pulley and stock green top injectors back in it did the same thing but was misfiring in cylinder 2 and 3 like crazy this was before i found out the luminova seal were leaking badly. i have sealed the cores since then but the car was missfiring with the stock stuff on it when i put the stage 2 back on there was no miss fires but left with the same bogging out under boost issue.


Recently i noticed that someone took out the internals of the cat so maybe thats whats causing this issue that my stage 2 tune is not tuned for? and when i had everything stock again same issue happening with both stock and stage 2



I will go hook a fuel pressure tester up and take it for a drive and see what it does be right back

THANK YOU FOR YOUR time sir i will be back with info

[gtstorey]

I can't really follow what has been tuned for, or if the car has ever ran right with the current setup. It might just need to be tuned.

[virtual1670]

I can't really follow what has been tuned for, or if the car has ever ran right with the current setup. It might just need to be tuned.

so i have a tune that was sent to me for what i have currently stage 2 42lbs injectors and he 3.0 pulley but he didnt tune for no cat as i didnt know the cat internals was removed before i got the car and ripped the old engine out nor was i smart enough to look down the exhaust pipe to see i put the current tune in the car up top on main post and the recording of it

[gtstorey]

So has the car ever ran correctly with the current mods? A tune that was sent to you with no iterations on a modified setup is not actually tuned. It's a starting point.

[virtual1670]

Yes it was good for one day i drove the car for about 2 hours and then parked it went back outside the next day and went right back to bogging out under boost. i stopped at a gas station and let it sit for about 15 mins got a drink came out started the car and it ran fine once again but then the next day bogging out again.

[gtstorey]

Not likely a tune issue. Unless you have some ECT table screwed up. Really sounds like a fuel pressure issue.

[virtual1670]

Not likely a tune issue. Unless you have some ECT table screwed up. Really sounds like a fuel pressure issue.

Okay just went for a drive with the fuel pressure gauge hooked up at idle 60psi The lowest i seen it drop was 58psi and then at wot after i let off while the car was bogging it jump to 65 and back to 60psi


would a bad wheel sensor cause this issue of stuttering while driving. also Like i said when i keep it below 0 or at 0 making no boost it runs fine.

[gtstorey]

I can't currently review the data logs. Is it running rich or lean when WOT, either from Wideband reading or narrow band voltage?

[virtual1670]

My car yesterday gave me a lean condition code

[virtual1670]

I can't currently review the data logs. Is it running rich or lean when WOT, either from Wideband reading or narrow band voltage?

gave me a lean condition code on my scanner spark plug tips are white everything is leaning towards a lean condition