Newly Swapped RB25DET Problems

[DrifterProdigy85]

So i got my RB swap done on Wednesday and been working out some small kinks on it. Heres a list of some issues im having that im not sure how to work out. Engine is a RB25 S1

1) Car starts up and idles fine when its cold but after its warmed up and i shut the car off, i have to sometimes give it some gas to get it to start again. Timing is at 15* and fuel pressure is at 43psi. I havnt converted my tach over yet but its reading a touch over 1000rpm which should be around 700-750rpm. Also something that might relate is that when i do get it started again, the idle bounces a little till i drive it some. Only bounces from 1100-1500rpm on my tach. Any idea whats causing this?

2) When the car warms up and comes down to normal idle there is a squeeking noise coming from the front cover. Its got a new timing belt, tensior, and idler on. When you rev the engine the squeek goes away. Any idea what this might be? *Just noticed after you drive it the noise goes away entirely till you start the car again*

3) My check engine light is on but it has a wierd pattern to it. When im applying throttle the light has a steady blink then when i let off the gas the light just stays on solid. I went to do a diagnostic test of the ecu but my ecu doesnt have the red LED to light up. Is there a diagnostic port somewhere (95 S14)? Also why do you think the engine light is coming on in this wierd pattern?
Modified by DrifterProdigy85 at 5:03 PM 6/7/2009

[DrifterProdigy85]

Heres a couple videos of what im talking about.

2)http://www.youtube.com/watch?v=WhtuP-98UQI

3)http://www.youtube.com/watch?v=0bpUxRpmK7U

[neonbomb]

My rb25 does the same squeeking noise in your first video.

Mine isnt as loud but it started right after my new timing belt/idler/tensioner install. I hope we get some answers other than "its a new belt".

[Fibre guy]

Don't know about the squeaking noise but I hard wired my consult port from my ecr33 front clip. It's really easy and works just fine. There is a wiring diagram somewhere on the internet.With your fuel pressure, what psi did you set it to with vac off?With a new setup, checking for boost leaks is a must.

[DrifterProdigy85]

43psi w/o vacuum.

My tach signal seems a little funny too. Like on the uncalibrated tach, when it gets near 6k+rpm the rpm just wants to stop even though the engine is still revving. Whats this sound like?

[matafied]

belt sounds like its a little to tight

[Neejay]

1) Car starts up and idles fine when its cold but after its warmed up and i shut the car off, i have to sometimes give it some gas to get it to start again. Timing is at 15* and fuel pressure is at 43psi. I havnt converted my tach over yet but its reading a touch over 1000rpm which should be around 700-750rpm. Also something that might relate is that when i do get it started again, the idle bounces a little till i drive it some. Only bounces from 1100-1500rpm on my tach. Any idea whats causing this?

2) When the car warms up and comes down to normal idle there is a squeeking noise coming from the front cover. Its got a new timing belt, tensior, and idler on. When you rev the engine the squeek goes away. Any idea what this might be? *Just noticed after you drive it the noise goes away entirely till you start the car again*

OMG I HAVE THESE EXACT SAME PROBLEMS!

#1 - I'm thinking it has something to do with the ECU temp sensor. When I unplug mine, there is no change in the idle. This is even after I replaced it with the CORRECT Z32 one. I think there's something wrong with my wiring.

#2 - Although mine does it a lot less than yours, I thought this may be due to my harmonic balancer wobbling a bit. I never really found out why it does that.

[DrifterProdigy85]

My coolant temp sensor is stock rb25 as far as i know and my wiring was done by Mckinney. This could be a possibility. My temp gauge never goes above 1/4 way.

[neonbomb]

Neejay i saw you posted in Zerolifts thread the other day on zilvia. Please dont buy mounts from those f***wads. They are such newbs id love to see their company get shut down

But back on topic.

Matafied I hope you are correct and I hope it goes away after the belt gets a bit worn

[neonbomb]

Any other opinions on the belt sound?

[DrifterProdigy85]

I dont know. Im thinking maybe i should have oiled up the tensioner and guide a little before putting it on. Its not a big deal as of right now.

Im trying to figure out why my check engine light keeps going on and off. Its doing it when idling now. I might just pull the damn light from the cluster. It runs fine but has a bad miss above 5500rpm under boost. Its got all new plugs and i cleaned all the springs and contacts of the coil packs. I think im gonna sauder a led on the ECU and see what codes come up.
Modified by DrifterProdigy85 at 10:06 PM 6/10/2009