ritefulback

iTrader: (1)

So i went to a performance shop today and had my future car checked out and it was detonating and the guys took out the car with a scanner and said that the cars knock sensors werent picking up knock.....SOOOOOOO he said replace the knock sensors so the computer can pull timing to stop the knock....


DOes that make any sense?

Do our cars detonate so much that the knock sensors are that mandatory??

How hard are knock sensors to replace?!

Roadhouse

iTrader: (8)

LS1 V8? There's several things that can cause pinging. I would imagine if the sensors were bad the CEL would be lit. Have you done a search?

ritefulback

iTrader: (1)

i have done a seach and i cant find something thats the same as i got

and its pinging, but the scanner said that it wasnt getting any knock retard from the sensors.

Do our cars really ping naturally and rely on the sensors to keep it under control?

Roadhouse

iTrader: (8)

Well, let's see. 10.1 CR is close to the threshold for running pump fuel. My Camaro suffers from it from time to time and I'm trying some different things to keep it from happening. I have installed a catch can inline of the PCV system, that helps keep the engine from trying to burn oil introduced into the intake from the PCV system. Next I'm changing the thermostat and gonna reprogram the car to run cooler because 210 degrees in engine temp before the fans kick in is rediculous. Maybe your soon to be has a tank full of 87 regular grade gas in it. That'll do it too.

ritefulback

iTrader: (1)

nah it cant i was there to witness 93 go in, i think it just needs those knock sensors, and im gonna replace em myself and i saved 350 he took off the car!

shocker45

get knock sensors. definatly. knock sensors advance the timing while ur putting more throttle into the car. so u floor it, say ur car stays at 13 degrees for example. itll be that right accross the board. so ur losing A LOT of power. without having knock sensors its basically the same thing as having the old school vaccuum advance on the distributors disconnected.
knock sensors allow the timing to automatically advance during WOT operation.

i didnt have them go on my car, but i had a 02 sierra with a knock sensor gone. i had NO power. i noticed a huge gain by changing. went from not being able to spin. to being able to leave a 20 ft patch with 35" tires.

ritefulback

iTrader: (1)

I understand itll let the timing go up, but im gettin actual detonation from it! not tryin to fix false knock, i got REAL KNOCK

Syxx613

iTrader: (8)

u do know that ur coolant temp guage is an idiot light right? thats not the actual temperature. it will just show if ur overheating or not. only 98's had an actual temp guage reading. all other years had an idiot light that read at 210 all the time no matter what UNLESS it was overheating.

and yes, change ur damn knock sensors ha ha.