madkaw

Have you cleaned or replaced the thermistor next to the temp sensor ? Is the AAR working ? If it is you should be able to pinch the hose when it’s cold and it should effect the idle . Sounds like your not getting the additional air during cold warm up . You could also visually check the valve is working . Almost sounds like your engine is idling off of the AAR valve , so maybe your butterfly is closed ?

Interesting . I did actually try to “preload” the TPS, but I might need to revisit that procedure . I don’t know if I did it like you exactly- if that was you in the video. thanks either way!

It’s almost more like there is slop in the fit of the TPS over the shaft. Once it engages it looks to be fairly accurate . I just need to get a real Nissan one and compare .

Remember what year you used?

Interesting . I’ve tried every which way to adjust it, but there’s not enough accuracy off idle.

So the engine is running pretty good. What I’ve noticed is that the TPS is not as sensitive as I would like it to be. It does not register off-idle as accurately as it should. I can move the throttle enough to bring the rpms up from 1k to 1500 and TS won’t even show movement. I’ve tried adjusting, calibrating , but it seems to be an issue of the TPS not being sensitive enough to small inputs. It is an aftermarket for my 240sx TB. And I have replaced it recently. I probably should have ponied up for a Nissan one. What I think it is doing is showing me at idle when I’m not . I guess I need to check voltages everywhere. I did verify that my sensor voltage coming from the MS is 4.95v. I need to test this at my sensors. Ordered a new O2 gauge . Ordered the Spartan gauge to match my Spartan wideband, maybe my numbers which match each other now.

Have you ever noticed the timing light issue I mentioned . Definetly a diffferent pattern on last 3 cylinders

I’ve been redlining my motor ever since I had these coils- 7200 rpm. Ill try and get a better pic of mine , but the coils are “ notched” into the square tubing. Hard to believe that small in set makes a difference over mounting on flat stock, but maybe my coils aren’t being loaded as heavy as yours with a smaller displacement motor ? You said there was a direct correlation to loading ?

I actually contacted him and he decided to keep it for now. It was rebuilt .

So were those originally d585’s you were having issues with?

I’ve noticed when checking timing, that the coils on 4,5,6 flicker twice the speed of 1,2,3 ?

So maybe you were having CAS issues from the noise ? My CAS is on the flywheel on opposite side of motor .

There was someone on FB selling one just a couple of days ago.

I keep reading your first post , but not sure I understand your symptoms . So basically the engine wouldn’t go past 6k because of noise from the coils? I haven’t had issues -except lately, and I’m not ready to blame my coils. I’ve been running my D-585’s for years . But maybe my mounting design helps me? Interesting!

Yes - I did some reading and realized that it needed to be mounted on top of the intake- which probably isn’t going to happen. I don’t think I’m ready to give up on the IAC . Besides - I’m having other issues right now I’m pretty sure my CAS is giving me issues - so I’m troubleshooting it right now. Found greasy condensation mess in my PCB coming from my MAP sensor . Also checking voltage for my VR sensor circuit.