I had replaced it last year so i thought it'd be good but when i took it out it was torn in half but still connected so i reused it since i didn't have a spare on hand :thumbdwn: but it's not a big enough leak to send a lean code, i still plan on replacing it when i get a chance. There's a hissing sound (like air being sucked in) after i shut the car off and it goes on for about 5-6 seconds, my guess is it's the DISA o-ring. Getting the CCV and the hoses connected was easy without the manifold off but putting the dipstick back in was PITA (lubed the o-ring, cleaned the area well and still no luck), i still don't think it is seated properly because after i pressed it in it was still able to move a little but the hole for the screw lined up so i figured it is in all the way and there are no leaks so i'm guessing it went in correctly (i hope).Īt 145k miles my CCV was pristine and i almost felt bad for doing all this work for nothing but i wanted to do this mod so i thought might as well. I know they are good quality I've used them before but they are a bit soft so i was wondering how they would hold up.Įdit: I finally replaced my CCV and did this mod (used the small connector that was connected to the vacuum canister). But the throttle position sensor code-could I have messed up the throttle body?Īlso, any possibility the new vacuum line running from the CCV to the unused port on the manifold (the O2 Pilot mod itself) is the cause? I'm just disturbed because the last time I did this I took off the whole manifold, which was a much bigger job (involving disconnecting the fuel rail etc.) and the intake tract went back together without issue. Lean codes-almost definitely a leak in some rubber or plastic part. But the throttle position sensor code concerns me. Also wondering if maybe my cleaning of the idle control valve or throttle body could have damaged either-I used the same procedure as in March and had no problem then. Are they single-use items like some crush washers? Did anyone else have any such hiccups doing this mod? At this point my plan is to tear down the intake back to the throttle body again and rebuild more carefully, just wondering if anyone had similar problems with this. Either that or the throttle body and DISA O-rings need replacing again. I'm thinking this must be an intake leak somewhere and admittedly I kind of rushed putting the intake boot sections/airbox back together-which makes me think maybe some section of the boot isn't properly connected. I connected my code reader which indicated lean codes for both banks as well as throttle position sensor errors. The car is not driveable in this condition. The idle also fluctuated wildly from 400 to almost 1,400 RPM. I got everything back together but when I started my car afterward the dashboard lit up like a Christmas tree with EML, SES, and traction triangle lights (!). I did not replace the O-rings for either the throttle body or the DISA as these were replaced in March when I removed the entire manifold to replace the CCV. I inspected the intake boot segments and they were free of cracks. I cleaned the throttle body and the idle control valve with carburetor cleaner. During the course of this mod I took apart the intake system down to the manifold. That said, I am having trouble of my own. Certainly not deal breaker for anyone competent enough to do this job, just something to be aware of if anyone is having trouble. Having done O2 Pilot mod today, I noticed the following: while it is possible to connect a vacuum line to the capped CCV port without removing the throttle body on standard CCVs, for the winterized CCV (which is wrapped in foam insulation), I found that getting to the port required removing the throttle body.
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