Z32 tt idle problem

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Markdailymd
Posts: 1
Joined: Sun Dec 20, 2015 1:18 pm
Car: 1993 300zx tt

Post

I just bought a 1993 300zx tt, and it was having trouble holding idle when I bought it. I was told the injectors needed replacing. I did so, Lang with the spark plugs, fuel filter, oil, and the fuel in the tank. I just got it all put back together and it's idling high, around 2000 rpms. It's also fluctuating up to 2500 rpms, like clockwork. It also redlines at 4500 rpms, which is far too low. I suspect a vacuum issue, but not sure where it's coming from. Any one have a clue as to what I may need to do? Tia


nissanfreak12
Posts: 1709
Joined: Sun Jan 23, 2011 4:07 pm
Car: 92 300zx 2+2 TT
Location: Denver, CO

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I would suspect a boost leak as well. This is a must have tool for a TT;


https://www.z1motorsports.com/z1-produc ... -1867.html

You can make one yourself, find them cheap, or even use a smoke machine.


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