FAIL. Need NB help
07-22-2010, 11:01 AM
#41
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Once you fix it let me know. I have different engine management but I get a bouncy idle as well that will stall. If I keep my A/C switched on, it wont stall but still drops then rises then drops and rises and then settles. If I dont keep A/C on it drops and stalls usually on the 2nd drop.
I also run fine at revs, have sprayed everything for Vac leaks, adjusted idle screw and got no response. I'll be following your tests/cure.
I also run fine at revs, have sprayed everything for Vac leaks, adjusted idle screw and got no response. I'll be following your tests/cure.
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07-22-2010, 03:16 PM
#43
Should be around 60kpa at 10 inches of vacuum.
Measure your turbo inlet, go into the plumbing section at lowes and create a cap to put over it. Then go to an autoparts store and buy a metal valve stem and drill the cap out to fit the valve stem in it. Set your compressor to 5-6psi higher then you plan to run and air your intake system up like a tire. Spray soapy water around the intake, the injectors, the brake booster line, the IC piping and anywhere else you can think of. If it makes bubbles, your leaking. With the truck, we set it at 35-40 PSI and it makes a hissing noise at all the leaks, but when testing N/A cars at 5-6psi, it doesn't make any noises. I've never tested at the 15-20psi you'll be testing at to know if it will make noise or be silent.
Measure your turbo inlet, go into the plumbing section at lowes and create a cap to put over it. Then go to an autoparts store and buy a metal valve stem and drill the cap out to fit the valve stem in it. Set your compressor to 5-6psi higher then you plan to run and air your intake system up like a tire. Spray soapy water around the intake, the injectors, the brake booster line, the IC piping and anywhere else you can think of. If it makes bubbles, your leaking. With the truck, we set it at 35-40 PSI and it makes a hissing noise at all the leaks, but when testing N/A cars at 5-6psi, it doesn't make any noises. I've never tested at the 15-20psi you'll be testing at to know if it will make noise or be silent.
Last edited by chpmnsws6; 07-23-2010 at 04:14 AM.
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07-23-2010, 09:11 AM
#44
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I just had a thought. Im using my NB crank pully on the NA motor. I know on the NA pully theres that metal disk that goes in the pully. On the NB its not there. By any chance, do you guys think that could be causing the issues at hand? LastnightI changed the intake mani gasket and it still didnt fix teh problem. Phil swears its all a tuning problem but I just dont think thats the WHOLE issue.
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07-23-2010, 09:16 AM
#45
No
Dude your tune is way way off and it's still set for 550's while you have 800's in. Plus you have a pretty big exhaust leak causing false afr's.
Fix the obvious......
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Dude your tune is way way off and it's still set for 550's while you have 800's in. Plus you have a pretty big exhaust leak causing false afr's.
Fix the obvious......
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Last edited by levnubhin; 07-23-2010 at 09:57 AM.
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