Thread: Handful of problems after putting motor in

First my car doesnt seem to want to throw codes so im unsure of what it could really be
1-car doesnt idle and wants to stall out on me. For grounds i have the alternator one, i made one from the thermostat to the battery. Do i need more?
2-no bov sound. Greddy type s is the bov. I have a boost controller(greddy profec spec2) so i have a line from the wastgate to the boost controller, then the boost controller it goes to the top nipple on the bov? then under the bov where it connects to the piping i just have that to one of the throttle body nipples where it t's off to my boost controller(inside the car) and my boost gauge
3-I hooked up a electric water pump, so i dont know if that has anything to do with a temperature sensor that apparently makes a cold start up hard and gives the idle problems i have? i havent let the car warm up long enough to figure that out
4-my electric is kinda sketchy, i noticed lights getting brighter and less bright with how high i rev the car(it revs high so i counted out the maf-and i grounded out the white wire in the sr20 harness(z32 maf btw)

Let me know, ive done tons of searching, but everything seems to be so back and forth
Im hoping to have this car running great again by tomorrow as i have to put 500 miles on the clutch for a mini road course the following weekend.

Mine is also grounded on the body on both the driver and passenger side. I suppose it came that way stock.



Your water pump shouldn't affect the cold idle, since the thermostat would be closed then.

No, this sounds all wrong. The wastegate and BOV should not be daisy chained together like that. They both need their own dedicated vacuum signal from the intake. BOV gets signal from the manifold and wastegate gets signal from before the throttle body (or the manifold too if you insist).

so the wastegate can get hooked to the intercooler piping before the tb? right where the bov is connected it has a nipple on it on the piping

i had this running great before, but when i took everything apart i had it fresh in my mind, then of course waiting on parts and my car to get painted took forever so i completely forgot everything.

Yes. As a matter of fact, there should be a boss on your compressor housing that can be tapped for the wastegate signal. Eliminates a lot of vacuum line, as well.

The BOV source should be after the throttle body on the intake manifold as it needs to see boost and vacuum. Vacuum is what assists the BOV with opening to relieve pressure and eliminate compressor surge.

so wastegate to boost controller, from the boost controller to nipple on intercooler piping. bov to manifold for vacuum and boost. hopefully this fixes the no bov sound and idle

Here you go:

http://www.alamomotorports.com/greddy/PROFEC_B_SPEC2.pdf

Look at page 10 for stock actuator type install.

well bov is working, but now the car is idling and hesitating horribly. I drove it around the block and its dogs pretty bad until like 3k but i didnt floor it or anything

Check for vacuum leaks, especially since you just redid the vacuum stuff. Make sure you didn't leave anything off/open.