Hey my knock sensor is bad and the bolt is stripped and i cant get it out and ive tried everything. jb weld, vice grips, hammering a bigger bit into it. It just keeps stripping more. would i be able to retard the timing so that it makes up for the faulty knock sensor because my gas mileage is F***ing horrible. Im getting like under 15 miles to the gallon or something. And it sometimes starts to work when i hit a bump or something and my gas mileage will be fine for about a 4th of a tank. any suggestions?

 

Bypass KS with .5MOhm resistor, use high grade fuel 95 or more.

Fuel gauge is unreliable. Nowadays my filled tank is at 3/4.

Short drive, town, is horrible gas guzzler. Even my -72 hornet did 40% better. There is fundamentally smtg wrong with this car, maybe the oversize intake heating? Highway is 30mpg when all ok.

 

I would have tried two methods: hammering thru a chisel at the sides; or using angle grinder to create a slot across the head to use something as a large screwdriver.

 

ya sounds like mine, the highest grade i can get is 93. Will that help my car out? and can you tell me where to put in the resistor?

 

I wouldn't recommend the resistor as a long term solution. If your engine knocks at all there is nothing to sense it and pull back timing. However, I didn't follow this advice and ran with one for the better part of 4 months without a problem, so you can try it just make sure your timing is not much higher than 15°. First, unplug the knock sensor subharness. This is the one near the crank angle sensor, and the wires go right to the sensor. Then just bend the resistor, and insert it into the side of the harness that goes back to the ECU (the top part of the harness). Make sure you run premium fuel, no less than 92 octane.

 

thankyou i appreciate it so use it with a .5 megaohm resistor? Im probobly going to get a new engine soon anyways Im sick and tired of mine and i can fix this new one up how i like it before i put it in and i can swap it to 5spd while i have the engine out as well. so i wont have this in for long. The best i can get is 93 octane but there are additives i can get that increase it by 1. Is it worth to do that once every full tank of gas?

 

and one more question. If you dont mind, can u take a picture of the harness at the crank angle sensor? and like put an arrow or something to it? my cd drive is not working right now so i cant view my ESM. It would be greatly appreciated.

 

Also do i need to advance the timing? how much did you say, 15 degrees?

 

Sorry, that was a typo, I meant to say to make sure your timing is not much higher than 15 degrees. Leave it stock.



There isnt much detail, but thats where it is

 

If you've got everything off so that you can see and reach the knock sensor, cant you just follow the wires to that harness? Should only take two seconds I would think.

 

thanks guys i appreciate it