well last week i pulled up code 41 O2 sensor, but today i pulled it up again and got
1. 41 O2
2. 23 Knock sensor
3. 14 electronic air control
4. 7 throttle angle

i know what # 1 means but what about the others, like the knock sensor, does that mean the motor knocked, or the sensor is bad? # 3 is that the IACV its been idleing like at 1800 so i figured that needed to be replaced, and #4 TPS??? i just switched TB during swap so it wasnt as hard to hook up MAP and TPS sensor and it was fine on old motor, so any help would be appriciated!! thanks

 

bump

 

i dunno bout the last 2 but i had a code 23 last week. I jacked up my car and looked at my knock sensor, the 1 wire that goes into the back of it had fallen out. just get under ur car and check it out, also the plug might have come out or broke off *hope u didn't break it somehow*

i asked other people 2 and they said that if ur engine is knocking the CEL wont turn on, so ur sensor is most likely having sumthing wrong with it. on top of that i heard it adjusts ur timing like 6-8 degrees and increases fuel pressure. basically it'll most likely make ur car run like ****. good luck gettin everything figured out tho

 

did u just recently do ur swap? cuz a lotta people *including myself on my car last month* break the throttle position sensor when doin swaps on ludes just cuz the engine is pushed so damn close to the firewall. it is on the backside of ur throttlebody. check that out and see how it is for ur code 7

 

no mine is still intact thats why i used the h23 TB because h22 wa crushed!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteLude &raquo;</TD></TR><TR><TD CLASS="quote">

i asked other people 2 and they said that if ur engine is knocking the CEL wont turn on, so ur sensor is most likely having sumthing wrong with it. </TD></TR></TABLE>


The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM. When the knocking is detected, the ecm will back the timing off 3-4 degrees per second until the knocking goes away, and then slowly advanced the timing until it is detected again, and then back off the timing and keep the it there, and remains at that setting until the engine load or throttle position changes. Usually, if there is a fault in the esc system, the ecm will set a code 43.

fs

 

bump bump!!!!!