I would venture to say yes, but we can't be sure without first hand logs.

Buy HPT, get on the HPT forum and learn how do do this yourself like we did.

Many of us are over there to help out.

 

can get it from zzp for 530 Canadian shipped..... I'm just pausing on my ability to tune lol.... Is it hard to learn.

 

It's not a cake walk, but there are several LNF how to guides on the forums over there. Log in and check out the GM 4 cyl section, you'll see a few familiar names.

 

So I put my stock ic back on and my stock filter back in.... Seems to be a little better but not much.... I think I'm gonna just get the trifecta tune, my buddy that has an 09ss works is a Lexus tech and he thinks the problem is with the programming. He said that maybe they put the wrong calibration number

 

I find it very odd you don't have a CEL if it's that bad.

Find someone with a DashHawk or DashDaq to read the trims for you.

When I was having lower MAP problems with Stage 1 I had outrageous fuel trims and no CEL.

 

What problems were you having with you lower map

 

Since you changed the parts back did you disconnect the battery for 15 mins or so and drive it normally for 50 miles to learn the proper fuel trims?

 

Drive it normal..... Nope lol I didn't drive it normal.... I will re try that lol

 

Disconnect the battery so it will learn from scratch. 15 mins should do it since you have no way to clear the tables.

 

Ok I did that now I'm out driving it really easy.... It's hard but I'm doing it lol....

 

Now my car won't boost over 0 psi and is fluttering like crazy.... Charge pipes are on all vacuumed hoses are on.... No cel

Ok after I shut the car off and re started it, it worked back to normal boost levels.... What could be wrong

 

My problem was the lower MAP sensor coming unplugged.

Make sure to check the wiring to both MAP sensors and check to make sure the sensors are in place and secured correctly.

 

This is most likely the issue. Loose connection on either the wires or the connector plug itself. You already did a boost leak test so most likely it is a sensor issue.

I have a 2009 Stage 1 calibration in my 2008 and it works just fine others have used HHR calibrations in the cobalts with corrected MAF tables. It is possible they loaded an HHR stage 1 file which has the wrong MAF tables for the car and would cause fuel trim issues for sure but it would show wrong in the calibration ID in the ECM. I am assuming at least one of the 5 dealers you have been to has check to make sure it has the correct tune file in it LOL.

 

Car is Back boosting to normal levels but the car still works like crap.... Wonder what that could have been.... I called onstar and they said there is no code.... Like WTF.... I drove 5kms with only 5 psi max.....what could be wrong?

 

did you check the stage 1 map sensors for faulty wiring or bad installation?

If you havent, I would start there.

 

Ok.... I will do that today possibly....just check where they spliced them into the harness....

 

Yes and make sure the harness is plugged in correctly and the MAP sensor is in place. If one of those things is wrong then you will get that type of limp mode.

Do you have a way of scanning for codes? You may not have a check engine light but you may have a code set.

 

I'm going to the dealer today and they are gonna see if I have a code.

I'm surprised it didn't throw a cel... I drove it like that for 5km....I'll probably solder the Sensor connection while I'm at it.

 

hey aren't u coming to Bayer's Lake today ? if so give me a text or something supposed to get the car at 5 ... we can meet up for a drive or something if its working better or whatever.

 

No I won't be in the city today.... I'm heading home..... I probably won't be back for appleblossems either....going to a couple dealers today then taking the car to digby and stripping it down....

 

The spark plugs in the picture look perfect.

I would venture to guess that the airbox mod is causing alot of your problems. Any modifications to the intake, even a K&N drop in (which you had both at first) and you really need to get a MAF tune or your fuel trims will be totally messed up. Either put a stock intake back on or go get it tuned and you will probably solve your problems.

 

Dealer found a p0236 code but cleared it to see if it happens again..... What does this code mean.

Found out the code has something to do with the boost pressure sensor..... Any other suggestions

 

Map sensor. Wiring or the map itself is fucked or on its way out. This is also reaffirmed by the fact your car was surging and not boosting until you restarted the car. This issue happens when the GMS kit is not wired properly or the connections are **** on the charge pipe TMAP.

 

mine threw that code too it was when my intercooler cracked... im suspecting a leak somewhere

 

yep same one I had and no CEL.

I'm 90% sure it's the lower MAP sensor. Might make sure the fitment is right and the dealer may need to rewire or solder the connection.

It sucks so many people are having problems.