nothix

I have a s13 blacktop SR20DET.
Engine mods:
-GT2871r .64
-550cc Deatschwerk
-Megan Exhaust Manifold
-Freddy Intake Manifold
-FMIC
-HKS SSQV BOV (recirculated)
-Enthalpy ECU Flash
-NGK BKR7E-11 Spark Plugs (gapped to .028)


My Problem:
The car has a slight pop/stutter when idling.
When revving the car the popping and stuttering increase.
More pops and stutters the higher the RPM.

So far I've tried:
-Replacing spark plugs: no change
-Regapping spark plugs from .03 to .028: no change
-Adding grounds to coilpack ground on the back of the head: no change
-Checked for vacuum leaks, found and fixed large leak on IACV: slight improvement

After fixing the IACV vacuum leak (stripped holes) my car would die on deceleration every single time, so I bumped up the idle to ~1100 rpm and it doesn't die as much. I disconnected the TPS and adjusted the IACV screw to set the idle.

Hear is a video of what the car currently sounds like:
SR20DET Stuttering Problem - YouTube

Today I purchased and infrared temperature sensor and checked the following:
mentioned here: http://zilvia.net/f/tech-talk/266301...ml#post2907070

I found no significant difference between the temperature of any of the coilpack tops or exhaust manifold tubes.

I also used the extension on the injector trick to see if i could hear any hiccups, and could not. All four sounded very consistent.

I checked the resistance between the coilpack leads and found most to be at .8 or .9 ohms (on 20ohm setting???).
I read that these should be 1000 ohms, so could mine be bad? All four?

Anything else I should check?
Thanks in advance

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'89 Sil80, SR20DET, GT2871r .64

nothix

Ordered spark plug wires, a induction timing light, and coil pack tester.

Hopefully I find something!

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'89 Sil80, SR20DET, GT2871r .64