It holds a steady 25lb but it's suppose to stop at 22lb I'm worried about the air/fuel ratio cuz all I have is the stock boost gauge. No check engine light and I've not put the gm stage one sensors in it yet

 

If its tuned for gmstg1 put them in......

 

Ok man didn't know it made a difference since they were optional

 

Yeah if your tune was made for the gmstage1 sensors then your sending incorrect readings to the ecm...

 

Now just the aggravation of that lower sensor and I'm done

 

Lmfao yeah burn it hahahaha

 

well i got em both in last night but the bottom one refused to go it and i ended up breaking the oring but then i put the best fitting one i could buy on it and yet it leaked air like a mother and threw it off horribly when it made boost lol of course.........



but now idk where to get a o ring that fits it and is small enough to fit in this hole

 

Did you cut the plastic boss off like the GMS1 instructions say? Also you see supposed to lube the o ring with either clean oil or silicone grease. The right size ring is 202. I got a pack from Mcmaster Carr. They are a little tough to get onto the sensor but just use some small metal picks and a little silicone grease or clean engine oil.

O Rings for GMS1

 

What you mean the plastic boss? All it came with was instructions on wiring and I got it from zzp Not that that should make a difference just sayin

 

The lower sensor will not seat unless you shave the plastic boss off. Look up the instructions on CED's site.

 

ok so i got to looking around and found what you ment by the boss. but I dont have a stock setup as for the charge piping but ill check it anyways but heres the real problems im having.......

1. the standard oring will not fit.

2. the sensors arent the same, they have a different serial code and the instructions from gm doesnt say anything about it....I read them and tried to find anything saying which sensor goes where but nothing.....

 

Are you saying the two sensors you received have different serial numbers? Or different part numbers? Both sensors should be exactly the same, regardless of the serial numbers.

 

Can u post a pic so we can help u out identifing the maps.

 

I just switched them around and guess what....the other one fit the charge piping perfectly so im assuming i had them backwards.....

checked my wiring to make sure it was all good and now im gonna order a o ring or two and i went ahead and put the permatex on the sensor with a small oring so soon as that cures ill be driving it once more and ill let you guys know how it goes

if this fails then ill diffenatly send in some pics

 

ok so everything is good to go....its running perfect....no check engine light, it pulls like crazy but its blowing more black sut then ever and when you stop or anything you can smell sulfur or something....idk if its right and im kinda worried? or is this just normal

 

THE BLACK SMOKE is normal for a car with a rich afr.... The sulfer you smell is if your catted. if your not catted make sure theres nothing burning. Also id be happier with a pic of said map sensors..!!

 

 

I know what they look like. Hence.. I have them as well and installed many. I want to know how his look since he said they were different.

 

I know. I was just saving him the trouble. I pulled them out of the same box as these to ship with his ecm.

 

Oh lol.... Yea i wonder if he mixed up stockers with the gmstg1'z lol