Nissan 3.0 V6 driveability issue

[KevinB]

I'm doing some work on a buddy's car. It's an '97 Infinity J30 with a 3.0 V6.

The only driveability issue it has is during a cold start. The engine starts, goes to 1500 rpm then dies. You have to keep your foot on the gas for about a minute, then it's fine. Does this thing have a iac motor? If so, I can't find it. Looks like it has a vacuum operated "throttle opener"...at least that's what it calls it on the emissions sticker. I'm not too familiar with these cars, any help is appreciated.

Thanks

 

[Pronto]

Clean the throttle body with throttle body specific spray cleaner. Wipe as much black crap off as possible. Worked for my 98 Maxima.

 

[KevinB]

Clean the throttle body with throttle body specific spray cleaner. Wipe as much black crap off as possible. Worked for my 98 Maxima.

Thanks for the reply!

I did that. BTW, this car has 2 tb's. Still has the issue. I already did a ton of work on this thing today, this is my last issue to resolve.

 

[Pronto]

Off the Maxima site:
How to clean IAC valve

--------------------------------------------------------------------------------

The credit goes to Mango95SE for this procedure.

Tools needed:
10 and 12 mm sockets
3 inch socket extension
universal joint (swivel pivot socket thing)
12-inch rachet (a short rachet may not work - need something to apply a lot of torque to loosen the bolts
Philip's screwdriver
rag
throttle body cleaner

1. Unplug the 4 connectors from the IAC assembly. Undo the hose that connects teh IAC to the intake assembly.

2. The metal bracket holding up the gray-colored connector is blocking one of the IAC mounting bolts. Using a 10mm socket, remove the bolt that holds the metal bracket. The bolt is just below the purple connector - you have to twist your head and crane your neck around to see the bolt.

3. Remove the 3 mounting bolts using the 12mm socket. The lowest bolt may require the Universal joint.

4. Pull out your IAC valve and clean it w/throttle body cleaner, rag, and old toothbrush.

You may even want to separate the plastic valve to clean it more thoroughly. Use a philip's head screwdriver, but make sure it is a snug fight. It's on there tight and if you don't have a good fitting screwdriver, you could ruin the screw head.

Reinstallation is just the reverse of these steps. It may be easier access to the IAC if you remove the whole air intake assembly, but it's not necessary.

 

[KevinB]

Thanks again. This may sound stupid...but I can't find the iac lol.

The car is a '97 Infinity J30, I think it shares the same engine as the 300zx. It has twin tb's. I need to get this thing done and get paid...I need the money for this year's racing budget (BG ain't cheap and I still need to put my engine back together)

 

[Pronto]

Duh, my bad, thought it was the I30 which shares the Maxima platform...
Don't know if you want to try this:
Mitchell 1, eAutoRepair.net - Do-it-Yourself Automotive Repair Information.
I have used that before and it was very helpful.