Shorted Battery Against Fuel Filter - Bad Knock Sensor Connector

[952g63t]

While installing my battery last night I managed to break the connector that my knock sensor connects to. Specifically, a wire that comes out of the connector broke right at the seal. Also, while tightening the positive terminal down I shorted my wrench against the fuel filter (to rail) bolt for a brief second.

I understand that I need to salvage a new connector and splice it in to fix, or hard wire the sensor to the harness.

My question is; What could I have done to my fuel pump from the short (still starts/primes on start) and more importantly, what sort of idle issues could be caused from a disconnected/broken knock sensor?

Thank you.

 

[kleenf4i]

though its possible, its highly unlikely you damaged your fuel pump from the short. you hit the fuel filter. For the knock sensor,It will retard the timing. Even though your knock sensor is unplugged the ecu will freak out because its not there. Then, to be on the safe side it retards timing.

 

[knochgoon24]

This is why you attach the positive terminal before the negative.

 

[kleenf4i]

This is why you attach the positive terminal before the negative.

... yes

 

[952g63t]

though its possible, its highly unlikely you damaged your fuel pump from the short. you hit the fuel filter. For the knock sensor,It will retard the timing. Even though your knock sensor is unplugged the ecu will freak out because its not there. Then, to be on the safe side it retards timing.

To be honest, It could have been the cruise control assembly mount on the fire wall that it shorted against. It literally happened in a flash...

I did connect the positive lead first. I had gone back to the lead bolt to tighten again, purely out of habbit.

Ever since I installed my battery and mbc last night its ran like crap. I've disconnected the mbc and inspected the harness next to the battery and just cannot figure out wth I did to it. I suspect I may have damaged my ecu so ill be pulling that out to inspect tomorrow. Ive been meaning to take a look at it any ways.

I checked for boost leaks, shaft play, oil in piping, timing, etc. Nothing obvious. It just wont rev past 2500/3000 rpm, bogs down & pops. Its like its starving for fuel/air.

It was running great before I installed the battery

 

[g4ebguy90]

Doubt you fried the ECU, turbo cars and most NA cars now, need that knock sensor to control timing, and on more advanced systems boost itself. Now that the knock sensor is messed up I bet is trying to keep itself alive. Do NOT boost at all, until you got a new one in there.

 

[kleenf4i]

its the knock sensor. And as stated above DO NOT run boost until its fixed. It will lean out like crazy. Trust me, I just went through these symptoms with my car. I had a rod knock and although i couldn't hear it the ecu did and would retard the timing. I could throw 17psi on it and it wouldn't go anywhere, just made it worse. With the knock sensor not being hooked up it will result in the same way as mine did with a knock.

 

[952g63t]

EDIT: Fixed - The knock sensor was wired wrong. For those who need to know, the knock sensor is not wired the same as it looks on the plug. Its crossed black to white red to ground.