[mararcher36]

I have a 2004 Redline. I bought it and then realized it had an aftermarket pulley. Measured it and it seems to be 3.1". I think it's gm performance. But my car just threw a code for a miss in cylinder 2 so I want to take it back to stock. Idk what is causing the miss. Im hoping just a spark plug. I can't afford a coil pack or all new injectors. I am going to florida in a year and I have to drive the car down. And the car needs to make it a year. I can't have this car blow up. So does anybody have a stock pulley they could sell or give me? I'm in ohio

 

[IONredlineRACER]

If it's the GM Pulley (which has 4 blue bolts), then the car probably has the GM Stage 2 Kit (smaller pulley and belt, bigger injectors, and a GM tune). If the car has an upgraded tune, it might not be a good idea to just put the stock pulley on (plus you would probably need a new belt, too).

 

[mararcher36]

How can I figure out if it has the injectors and tune? And are you sure stage 2 is the 3.1 pulley? I thought stage 2 was smaller. I'm running like 15 lbs of boost. What size pulley would that be

 

[goaliemo]

nope. stage 2 is 3/3.1 depending on the kit. look at the injectors, lime green is stock.

 

[mararcher36]

My injectors are black on top and the bottom looks grey?

 

[goaliemo]

you have a stage 2 kit then.
you would need to be retuned for the smaller injectors then if you went back to stock.
Your best bet is to give it a full tune up, then see if its still throwing a misfire code.

 

[mararcher36]

Ok. Well I have a question. For the stage 2 kit do you send your computer to them or do you get one in the kit and send yours back? I wasn't sure. Is it possible my computer isn't programmed. The car runs fine. It just thru that code. I just replaced the coils though and the code hasn't come back yet. Idk. I just got the car and I'm not educated on it yet.

 

[REDLINE1313]

It has nothing to do with the stage2. You don't want to go back to stock, the stock pulley was pressed onto the snout and you will hate loosing the power. The tune and all the parts would be just stupid to waste the money on and the car actually runs better on stage2.

 

[mararcher36]

Thanks. I decided against it. What psi should stage 2 be running? My boost guage was saying 15.

 

[REDLINE1313]

Thanks. I decided against it. What psi should stage 2 be running? My boost guage was saying 15.

Stock is 12.5, stage2 is 15. It can vary alittle depending on where you live and if you have exhaust mods. With open exhause it will drop some but the power will still be there unless you go too big then you loose back pressure and low end power.

 

[mararcher36]

Ok. Thank you. That's awesome to know.