Lack of power after knock sensor install - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Falken180 · 04-27-2015, 12:16 PM

Replaced my knock sensor on my ka. Disconnected the battery for 30mins. Hesitates at 2.5k rpm. No power at all. Believe it's in safe mode. Installed Isis knock sensor and sub harness. Erased code also

Any ideas?

EnnEssEnnKAT · 04-27-2015, 01:52 PM

Did you reset the timing after the install?

Falken180 · 04-27-2015, 05:44 PM

Will try that next. Did that work for you?

Falken180 · 05-08-2015, 06:52 PM

Replaced my tps ground on the harness was broken. checked my timing. Car hesitates alot under full throttle and even half. Any one else? searched around didnt get solid answers

***dorkidori_s13*** · 05-08-2015, 07:06 PM

Quote:

Originally Posted by Falken180

Replaced my tps ground on the harness was broken. checked my timing. Car hesitates alot under full throttle and even half. Any one else? searched around didnt get solid answers

clean your MAF sensor with a qtip and MAF cleaner from autozone. dirty MAF will cause all sorts of issues pertaining to acceleration.

also, check voltage on TPS as well. if voltage is off, it can screw up your AF raitos pretty bad.

why didnt you just buy an OE knock sensor? saving a few bucks on vital engine components is a BIG no no! if a nissan OE part can be had as far as sensors go, ALWAYS use OE!

Thedriftbadger · 05-09-2015, 10:04 AM

Probably got a bad sensor.

Falken180 · 05-31-2015, 11:26 AM

Figured it out was a bad ground wire on the tps and timing was off a tooth. If anyone was wondering

04-27-2015, 12:16 PM	#1
Falken180 Leaky Injector Join Date: Apr 2012 Location: MA Age: 31 Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	Lack of power after knock sensor install Replaced my knock sensor on my ka. Disconnected the battery for 30mins. Hesitates at 2.5k rpm. No power at all. Believe it's in safe mode. Installed Isis knock sensor and sub harness. Erased code also Any ideas?

05-31-2015, 11:26 AM	#7
Falken180 Leaky Injector Join Date: Apr 2012 Location: MA Age: 31 Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	Lack of power after knock sensor install Figured it out was a bad ground wire on the tps and timing was off a tooth. If anyone was wondering

04-27-2015, 01:52 PM	#2
EnnEssEnnKAT Zilvia Junkie Join Date: Sep 2014 Location: New Hampshire Posts: 427 Trader Rating: (13) Feedback Score: 13 reviews	Did you reset the timing after the install?

04-27-2015, 05:44 PM	#3
Falken180 Leaky Injector Join Date: Apr 2012 Location: MA Age: 31 Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	Will try that next. Did that work for you?

05-08-2015, 06:52 PM	#4
Falken180 Leaky Injector Join Date: Apr 2012 Location: MA Age: 31 Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	Replaced my tps ground on the harness was broken. checked my timing. Car hesitates alot under full throttle and even half. Any one else? searched around didnt get solid answers

05-09-2015, 10:04 AM	#6
Thedriftbadger Zilvia Junkie Join Date: Jun 2013 Location: ontario Posts: 305 Trader Rating: (0) Feedback Score: 0 reviews	Probably got a bad sensor.