Yeah it could you would also have a hard brake pedal due to low vac. Put a mechanical gauge on it and see what it says. You can also spray throttle cleaner around the intake if the rpm goes up that's where your leak is. I'd start with a mech. Gauge first.

 

Yeah it could you would also have a hard brake pedal due to low vac. Put a mechanical gauge on it and see what it says. You can also spray throttle cleaner around the intake if the rpm goes up that's where your leak is. I'd start with a mech. Gauge first.

 

Cool thanks for the advice. I'll definitely do that.

 

I used a mechanical gauge, and definitely have vacuum. Starting to think it's just the sensor.

as for how rich the car is, i double checked injectors, they're stock, and scaled appropriately.

 

These cars run pretty rich stock under boost, the idle is not normal however.

I would venture that there is something else in the tune that isn't being accounted for.

 

Like I said, pulled the tune with ecuflash, and compared it table for table to a stock tune. Only difference was high octane ignition and fueling maps. Which don't have anything to do with idle or cruise. I might just take it to a shop, really has he stumped. Who do you guys recommend in the tristate area besides Ivey?

 

They have everything to do with idle and cruise if they turned off closed loop.

Check the periphery bits and thresholds for open loop.

 

Try giving TSCOMPTUNED a shout.

He works some magic.

 

STM is up that way as well.

Both awesome shops.

 

I flashed tephrav7's rom to be sure and It did the same thing. Really don't think it's tune related.

I'll check the bits tonight though, do you know which they are?

 

fix all boost leaks first, then if the problems persist, continue troubleshooting. You should be able to hold 25psi no problem. The massive leak you described in your valve cover makes me think faulty pcv valve, but you will have to test.

 

you make a valid argument lol, how does one test their pcv valve? can you literally just blow in it? I'm assuming if you blow through opposite of the valve cover side, and it opens, its bad?

 

It wouldn't start.

 

What was the issue?

 

Still not fixed... too freakin cold to work on it here in NJ.

I'm ordering a BOV and I'll retest for leaks around the PCV and oil cap.

Is it still believed that the stock evo 9 bov is best for boost levels under 25 psi?