quick4dr Posted September 17, 2014 Share Posted September 17, 2014 Was doing some reading on here and nasioc and stumbled lol upon an article about cleaning the crank/ cam sensor to sort out a slight stumble/ rough start condition. Well since it's 1 10mm bolt and simple plug harness I pulled my sensor today. It was disgusting. Caked with thick black cake batter like consistency filth. I used electronic parts cleaner on it and wiped it all clean and then replaced. Dabbed some anti seize on the bolt for good measure. Car most certainly starts smoother. I never had a hesitation while driving. But must say the motor feels happier, perhaps the gunk was interfering enough with the signal. Total time invested 5min. Tools: 10mm wrench. Electronic parts cleaner, shop towel. 113,500 miles I'd recommend it to all. picture of gunk and sensor location below. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 17, 2014 Share Posted September 17, 2014 Yep, things like to be clean. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
subie_dude05 Posted September 17, 2014 Share Posted September 17, 2014 post up a link to the article also... Link to comment Share on other sites More sharing options...
T_Altland27 Posted September 17, 2014 Share Posted September 17, 2014 Got a pic of where this sensor is located? Link to comment Share on other sites More sharing options...
quick4dr Posted September 17, 2014 Author Share Posted September 17, 2014 located directly under alternator. Link to comment Share on other sites More sharing options...
quick4dr Posted September 17, 2014 Author Share Posted September 17, 2014 Pic of the gunk Link to comment Share on other sites More sharing options...
quick4dr Posted September 17, 2014 Author Share Posted September 17, 2014 Location Link to comment Share on other sites More sharing options...
subie_dude05 Posted September 17, 2014 Share Posted September 17, 2014 Perfect, Thanks! Link to comment Share on other sites More sharing options...
MrTris Posted September 17, 2014 Share Posted September 17, 2014 Mine looked like that, too, when I pulled it out. Did the same thing, just happened to have electronic parts cleaner (didn't feel comfortable using Brakeleen) and a towel. I figured the black gunk was timing belt rubber dust - Link to comment Share on other sites More sharing options...
quick4dr Posted September 18, 2014 Author Share Posted September 18, 2014 My guess exactly, belt rubber particles and pulley grease residue. Iether way simple and effective preventative maintenance. Link to comment Share on other sites More sharing options...
Redryan98 Posted September 18, 2014 Share Posted September 18, 2014 I pulled and cleaned my crank pulley last night too. Thanks for the idea. You also mentioned the Cam sensors. Did you clean those too? They look a bit tougher to get to and wondering if its worth the effort. I'm chasing a very minor roughness/misfire and want to narrow down the list of causes as best I can. Thanks! Link to comment Share on other sites More sharing options...
quick4dr Posted September 18, 2014 Author Share Posted September 18, 2014 Have not done cam yet, only tracked them down, gotta plan some time to pull them and see Link to comment Share on other sites More sharing options...
Vmax540 Posted September 19, 2014 Share Posted September 19, 2014 Are there not 4 cam sensors two on top back (intake) and two on bottom front of head for exhaust ? Link to comment Share on other sites More sharing options...
quick4dr Posted September 19, 2014 Author Share Posted September 19, 2014 I thought only 2, Link to comment Share on other sites More sharing options...
Max Capacity Posted September 19, 2014 Share Posted September 19, 2014 I believe only two. check out the pictures in my click here link. No sensors down low 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
kzr750r1 Posted September 19, 2014 Share Posted September 19, 2014 Just two cam and one crank under the alternator. Pretty sure they are the same part but don't quote me on that. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 19, 2014 Share Posted September 19, 2014 the "opposedforces" site at the sticky in the very first forum here would know that. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Vmax540 Posted September 21, 2014 Share Posted September 21, 2014 I believe only two. check out the pictures in my click here link. No sensors down low Yes, only two sensors, and I was looking for the two sensors I lost while the engine was on the stand and when I got down and looked up I see they are blocked off dummy holes... Link to comment Share on other sites More sharing options...
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