Hey guys got the truck running a while back still has a loose mail in tune from vengeance racing. I am throwing knock sensor codes sometimes, its incomplete circuit knock sensor one, and the same thing on the knock sensor 2. The motor is a 01 5.3 with thunder racing tutorq level 1 cam 218/224 .609 .604 114lsa tr pushrods comp 918 valvesprings, 04 flex fuel injectors. im running doug thorley tri y 1 7/8 primary headers through 2.5 mandrel exhaust x pipe dynatec race mufflers with 3 in tailpipes. I am running solid motor mounts and its a leafspring front end with somewhat aggressive tires. We bought the rights to the computer thought efi live and put some z06 knock sensor parameters to see if it would help, but it still throws the codes, it has a very little bit of valvetrain noise too. My question is do you think im picking up false knock...exhaust, valvetrain, mabey even road vibrations due to the rougher ride and solid mounts? zero put the knock sensors or keep fighting with them?

 

thats a big cam for a 5.3 probably valvetrain noise.

 

Mine started pulling timing from the pinging sound the headers added. You can adjust the sensor's sensitivity and how much timing it pulls out if you are sure you are safe on the timing tables.

 

thanks guys, and yea i thought it was large also but i called and talked to the guys at thunder racing and they "assured" me it was fine blah blah blah, then about 7 months after i got my cam and everything else boom they go out of buisness. Mabey the guy i talked to knew a little bit and wasnt just wanting a sale. Anyway ill see if i can adjust them out, i just dont know how much to fight with it before i need to call it quits on them, i mean i obviously dont want to just zero them out IF i can adjust it out.