Thread: Knock sensor, Lopey idle.....?

Here's what I got.

92 SE-R. JDM 9.5:1 highport. CLEAN under the valve cover.
ebay warm air filter.
ssac to 2.5 straight exhaust
solid energy suspension mounts all around.
thermoblock plenum and manifold
castrol synthetic 10w30
ngk platinum range 6
regrounded maf . which helped.
o2 sensor on #3 or 2 primary, i forget. Which is grounded as well.

The engine itself is very steady. The car itself is very shaky at all times. I'm
thinking because of the solid poly mounts.
Problem. It has a lopey idle.
I have the blazt nissan data scan. Timing goes from 3-21 degrees.
When using the timing light, it jumps a bit too.
I get codes: speed sensor,knock sensor, and sometimes Cam position sensor. but they say "car started 0 times" with the following codes. I clear them and they come back up. Yet, my check engine light never lights up and it works.
Car runs very good. Waste less gas then my 1st gen neon.

Can a very shaky car cause misc bumps, vibrations, and various frequency sounds for the knock sensor to pick up.

In my reading. I haven't confirmed if we need the knock sensor to be plugged in. I read a 240 guy with an sr swap didn't have one. Or i misread.

If every time you check the codes, and it states "car started 0 times" with the codes, that means that they're being triggered every time you drive/start the car.

Knock sensor wouldn't be as easy to go off in a B13 without cams, as it would in a B14. I talked with calum about this particular issue in depth.

The cam position sensor would have me worried more. Have you checked the dizzy to see if there's any oil inside? If the o-ring is leaking, and you're getting oil on the CAS, then that will throw the code and the car will run kinda crappy.

I haven't checked, but the car runs good. Just a lopey idle. As I can see in on the tach, read it on the datascan, and feel it in the car. The car itself runs very well.

Oh okay, well then likely just the prothanes causing your "lopey idle".

What's your idle RPM set to? Try increasing it 100~150rpm and see if the lopey idle disappears.

I will do that. Tomorrow. Thanks, I will report tomorrow.

hi check rotor inside distributor cap to make sure it isnt loose.

a few things: 1) the computer cannot be trusted for timing. Go into timing mode and do it manually.
2) Prothanes shake my fillings out of my head. even if it's smooth at 750-850, it's very rattly
3) timing light will only jump under two conditions.
i) You didnt let the car warm up enough before going into idle timing mode
ii) you let it go too long in timing mode and the fans kick in, thus retarding timing slightly.

Hope that helps

I check the oil in CAS, nothing.
I didn't go into timing mode, but it keeps on jumping around with timing light and datascan.
Compression is good on all cylinders.
I swapped to an older distributor I had laying around and same problem.
I'm gonna swap the old mounts back in.