Engine light coming on for awhile and then going off for awhile.

[j cAT]

on the intermittent p0327 torque the ks [knock sensor] to 14ft lbs...leads to KS must be clear of plug wires high voltages will cause this problem so plug wires run near these are a problem the resistance of the KS is 100k ohms check connection for issues as well as wire for chafing and continuity..

as you know your KS is very close to the distributor so that KS wire must be run correctly or it will pick up the distributor EMI..........

[ukrkoz]

maybe this will be of some help. i know, it's P0325, not 0327, but both codes are virtually identical:
http://www.obd-codes.com/p0325

[ukrkoz]

Originally Posted by j cAT

as you know your KS is very close to the distributor so that KS wire must be run correctly or it will pick up the distributor EMI..........

just out of curiosity - as i have 2000 5.3V8 on mine - the 99 V6 has a distributor? not ignition modules? i mean, it might as well, i have seen stranger things...
haynes says it has ignition coil and ignition control module, not a distributor. of course, both are high voltage devices, indeed. it's just that there's so much basic difference between distributor and module...

[lweford]

j Cat is right, new does not mean that they are good. I failed to mention that when my truck started missing under load I immediately went to the local parts store and bought the cheapest set of plug wires they had. That didn't help my problem. About, 10 labor hours later it was found that the "new" wires were just as bad as the old wires. So I replaced with the premium wires and all was good.

[silicon212]

The V6 engines STILL use a distributor as it's old Gen-i small block V8 based, specifically it's 6 cylinders of a 350. The Gen III engines (your 5.3) all have individual coil packs.

Anyways, put an OBDII scanner on it and drive it around for a while. Pay attention to the data the scanner is showing. Have a friend drive the truck while you pay attention to the data under acceleration, while coasting and while idling. This will reveal a lot.

Clearing the code on the computer will do nothing but put the computer in 'not ready' mode. Plus, the problem still exists and the light will be back! You won't have to worry about 'not ready' mode unless you are trying to pass a vehicle emissions inspection. If that's the case, you will fail the test hands down. It's best to find the problem, fix it and then go from there. You generally have to have 50 start/stop/drive cycles on the computer after it has been put in 'not ready' mode in order to have it inspected.

[robertbassin5]

This is the code that I am getting - DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or
Single Sensor.

[robertbassin5]

This what my code is telling me. DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or
Single Sensor

[j cAT]

Originally Posted by ukrkoz

just out of curiosity - as i have 2000 5.3V8 on mine - the 99 V6 has a distributor? not ignition modules? i mean, it might as well, i have seen stranger things...
haynes says it has ignition coil and ignition control module, not a distributor. of course, both are high voltage devices, indeed. it's just that there's so much basic difference between distributor and module...

the 2000 v6 has a distributor and even an air pump!

[j cAT]

Originally Posted by robertbassin5

This is the code that I am getting - DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or
Single Sensor.

I forgot to mention If they dropped the sensor its n/g....this is a fragile componet...have fun...

[robertbassin5]

So where should I start?

[777stickman]

Originally Posted by j cAT

on the intermittent p0327 torque the ks [knock sensor] to 14ft lbs...leads to KS must be clear of plug wires high voltages will cause this problem so plug wires run near these are a problem the resistance of the KS is 100k ohms check connection for issues as well as wire for chafing and continuity..

as you know your KS is very close to the distributor so that KS wire must be run correctly or it will pick up the distributor EMI..........

this is were I would start!!

[robertbassin5]

Hey there I pulled 1 plug out and it is not a platinum plug it's a champion copper plug.

[Scrapper]

i'd put ngk in in..say missing under load and you replaced plug wires. missing under a load i do a compreson test..

[robertbassin5]

Well here is what is going on with my engine light. First I had code cleared. Second I have replaced the spark plugs, wires, knock sensor, the connector, and used unleaded plus gas. I drove about 100 miles and the code came back. Any ideas? I am stumped and ready to pull my hair out. Just wondering if I should carry it back to the place I had the motor installed.

[j cAT]

Originally Posted by robertbassin5

Well here is what is going on with my engine light. First I had code cleared. Second I have replaced the spark plugs, wires, knock sensor, the connector, and used unleaded plus gas. I drove about 100 miles and the code came back. Any ideas? I am stumped and ready to pull my hair out. Just wondering if I should carry it back to the place I had the motor installed.

what about the KS wires? did you route them away from spark plug wires and distributor? also what type of gas do you usually use ....?


the possiblity that the computer is bad or the connectors at computer/ecm/pcm......


IT's a long shot but since this KS voltage is very low in amplitude the possibility that they did not secure the ground wires is common ...this will make electronic noise....