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fullmetalx · 08-23-2007, 01:10 PM

Problem solved. code 55 now.

I did a little more reading on zilvia and read some post by mr. ps13silvia. he said to check for a short on the harness between the ecu and to the other end of the plug by the knock sensor. he said that it's a common problem he has dealt with a few number of times on ka24de engines.

Lesson learned. i know yesterday i checked for continuity but what i didn't check was voltage. I shoul've looked into that also. there could be contuinity but the right amount of voltage is not coming through, hence there could be a short somewhere. now i didn't want to open up the entire harness throughout the top of the fuel rail. so i made a jumper wire from the ecu pin #27 straight to the knock sensor itself. cleared the codes, checked timing with tps off at 20'. test drove car. also noticed bluish white smoke at the beginning of acceleration is gone. came back shut engine off. recheck codes and code 55 shows up. whew. fixed it after almost 5 yrs of running like that. my old knock sensor could have been still good eventhough the housing was still melted. it was just a short in the line. wasted $60 on a new one that could've been put to better use.

Thanks everyone for the replies.

08-23-2007, 01:10 PM	#7
fullmetalx Zilvia Member Join Date: Sep 2005 Location: san diego Posts: 189 Trader Rating: (5)	Problem solved. code 55 now. I did a little more reading on zilvia and read some post by mr. ps13silvia. he said to check for a short on the harness between the ecu and to the other end of the plug by the knock sensor. he said that it's a common problem he has dealt with a few number of times on ka24de engines. Lesson learned. i know yesterday i checked for continuity but what i didn't check was voltage. I shoul've looked into that also. there could be contuinity but the right amount of voltage is not coming through, hence there could be a short somewhere. now i didn't want to open up the entire harness throughout the top of the fuel rail. so i made a jumper wire from the ecu pin #27 straight to the knock sensor itself. cleared the codes, checked timing with tps off at 20'. test drove car. also noticed bluish white smoke at the beginning of acceleration is gone. came back shut engine off. recheck codes and code 55 shows up. whew. fixed it after almost 5 yrs of running like that. my old knock sensor could have been still good eventhough the housing was still melted. it was just a short in the line. wasted $60 on a new one that could've been put to better use. Thanks everyone for the replies.