knock sensor replacement

[daylight]

howdy have 94 4runner 3 liter, planning to replace knock sensors. so the job just gets bigger valves cover gaskets, water pump, timing belt, the hoses to heater, cam seals , the crankshaft seal, fuel injectors, am I forgetting anything? have all Toyota parts, schley harmonic pulley holding tool, new big 4 row radiator. since I can't find new injectors the 4 hole ones, can some one clue me in where I should look? thx for your time gil

 

[kc15842]

howdy have 94 4runner 3 liter, planning to replace knock sensors. so the job just gets bigger valves cover gaskets, water pump, timing belt, the hoses to heater, cam seals , the crankshaft seal, fuel injectors, am I forgetting anything? have all Toyota parts, schley harmonic pulley holding tool, new big 4 row radiator. since I can't find new injectors the 4 hole ones, can some one clue me in where I should look? thx for your time gil

I went through the chase to resolve the knock sensor, code 52 CEL. I suggest you wire a replacement direct to the ECU before you take apart the top if the engine. I did it to many times. I found the shielded cable between the ECU and the engine connector was at fault.

 

[FarNorth2ndgen]

so i had this issue and it was the cable had been damaged, i went through the whole top end teardown i ended off biting off more than my mechanical abiltiy(or lack there off) could handle. in hindsight i could have gotten away with changing the cable and bolting an OEM knock sensor to the engine mount. i bought a parts runner with a severe knock, not a single CEL was thrown from the sensor.

 

[Brian513]

You’ve got most of it covered. Also replace intake and plenum gaskets, PCV valve, thermostat, vacuum lines, spark plugs, wires, and distributor o-ring. For injectors, try Denso, RC Engineering, FiveO Motorsport, or have your originals cleaned and tested.