This is an issue that has been nipping at me. If I give the throttle a good pump, my engine will hesitate less than a second before revving up. Its very short lived but its certainly there. If I slowly get on the throttle, everything is normal, so it only occurs when I pump it. I checked my codes and got 21 (Coil wtf?) and when I rechecked them, I got a 44 code. Any ideas or suggestions would be greatly appreciated!
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Slight Hesitation
1985 Nissan 300ZX 2+2- My first Z, back in the family
1987 Nissan 300ZX Turbo RIP 4/87 - 4/28/2011
Under Construction: 1986 Nissan 300ZX NA2T Slicktop
Originally posted by TempestasWell, one of the t-tops wasn't latched real well... God only knows where that t-top flew off to at 150+ mph. Didn't scratch the car or anything, just a boom and it was gone. I sure as hell didn't stop to see where it went. I didn't see any stories on the news... so that's a plus.Tags: None
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This has been an on-going problem with Z31's from MY EXPERIENCE.
My Z31 did this, my friends did, and my other friends did.
I personally came to the conclusion that its because of the stock AFM Placement. I think that because it has to draw air through the charge pipe and through the compressor housing as well as against a ALMOST stalled compressor wheel causes the "delay".
BUT I also think im IN-correct because my friends VG34 Z31 does not do this, it is INSTANT throttle response without that hesistation you speak of!
Now when I got my intercooler, this hesitation got even worse!
I went from 1-2 feet of plumbing before the throttle body to over 5-8 feet (Intercooler piping) of piping!
My Hesitation got about 50% worse.
I then upgraded to Z32 AFM and placed it 1 FOOT before the throttle body and the throttle response got 10x better BUT that "hesitation" is still there...
Heres the kicker.
The ONLY things my car has to run is:
Fuel temp sensor.
MAF (AFM)
CHTS
Crank Angle Sensor
TPS
THATS IT.
Sooo... I guess its a programming issue going against the Nissan engineers rather than a Vehicle issue...
Then again maybe someone more knowledgeable can chime in :baton1SIKZ31 -86 SlickTop- R.I.P. 03/01/10 ... Parted out :-(
... New Project: LS1 Miata. Complete. 510whp. 2500lbs.
1 Month Away from Rear Mount 76 --> 650-700whp.
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