thebart455

my 98 z check engine light came on. when i had it checked out it was a knock senser was flaggin and my car had a miss, i changed plugs and wires and the miss is gone. but the check engine light came back up again sayin knock sensor? what could be the problem? will driving it like that foul the new plugs out? or is there any dummy plug u can get to take the check engine light off? thanks for your help!

MeentSS02

iTrader: (11)

Replace the knock sensors.

thebart455

will it foul the plugs if i drive it like that? i was thinking of having the knock sensors tuned out of the car, would that not be good to do or would just replacing them be the best?

oange ss

iTrader: (50)

get the updated knock sensors and harness or you will keep having problems

E V I L

iTrader: (6)

Any idea what all of this costs?

Soul TKR

iTrader: (4)

definately get new knock sensors... chances are, they are all rusted and corroded... what tends to happen is water gets down into the valley cover and rusts up the knock sensors. When you replace the sensors, use some sort of silicon gasket/sealant and seal the rubber boot above the knock sensors to the valley cover to keep future water residue from reaching the new knock sensors...

and no, I don't believe you can tune out the knock sensors, and I don't think that would be a good idea to do anyways. They are there for a reason and process the correct timing for the engine to run. As far as fouling your plugs, I think you'll be ok for a short period, but I wouldn't run it too long like that.

brad8266

iTrader: (23)

You can tune out the knock sensors, mine barely work anymore since I tuned them out. This is highly not recommended though unless you know your **** is not going to ping at all.

E V I L

iTrader: (6)

So what do the parts cost for the swap? I have all weekend to pull my damn intake back off! GRRR

THE CHOP SHOP

iTrader: (7)

I drove my car for a few weeks with the knock sensors not funtioning properly. I think that it just retards the timiming so it is in Safe mode. I think the harness was like $40 at the dealership and the sensors were around that each. I went with the later style cause one of the clips broke when I was removing the old style harness. The dealer had to order the harness so order it before you start. The new knock sensors were like 50 each as well I think. So I dropped somewhere around $150. I saw some stuff on Ebay last week so if it was me I would poke around on there and try and save a few bucks. I cleaned my engine bay to well and got water in one. Then 2 years later I guess when I cleaned the water out I got the seal out of alignment and it slowly got oil on one and I had to replace it again.

E V I L

iTrader: (6)

Awesome so is the install pretty easy? And the new harness, does it have to be spliced in or just remove old and install new?

THE CHOP SHOP

iTrader: (7)

Just unplug the old harness and plug the new one in. It is nice and easy. Well that part is at least.