Found my SAI leak..
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Rock Crawling
Joined: Apr 2017
Posts: 315
Likes: 45
Found my SAI leak..
Well I had P1415 and P1412 along with lean codes on both banks.
Turns out I'm a complete moron, and while detailing the salt covered engine bay after the snow we had I had broken a vacuum line connector to the SAI pump. I of course, did not notice this.
Drove it down to Northbrook from my WI house in the snow, and almost tore my head off when the CEL came on right along with the 3 Amigos a few minutes earlier (Option B fix failed, needs new SVS), I found the broken connector and repaired accordingly.
20 miles later, CEL. Same codes.
I get back to WI, throw it on the lift, turn the heat on get ready to replace the pump and associated vacuum lines..and while looking at the IM, I found that the damn SAI vacuum line is just laying there! The rubber piece that connects the vacuum line from the pump to the intake manifold ended up being heat damaged and no longer held its shape.. which meant it did not hold itself onto the nipple on the IM.
A few zip ties later everything is back together. No codes yet, but its only been 30 miles.
Here's for hoping this works so I don't have to order a $5.00 part
because that would be devastating.
Turns out I'm a complete moron, and while detailing the salt covered engine bay after the snow we had I had broken a vacuum line connector to the SAI pump. I of course, did not notice this.
Drove it down to Northbrook from my WI house in the snow, and almost tore my head off when the CEL came on right along with the 3 Amigos a few minutes earlier (Option B fix failed, needs new SVS), I found the broken connector and repaired accordingly.
20 miles later, CEL. Same codes.
I get back to WI, throw it on the lift, turn the heat on get ready to replace the pump and associated vacuum lines..and while looking at the IM, I found that the damn SAI vacuum line is just laying there! The rubber piece that connects the vacuum line from the pump to the intake manifold ended up being heat damaged and no longer held its shape.. which meant it did not hold itself onto the nipple on the IM.
A few zip ties later everything is back together. No codes yet, but its only been 30 miles.
Here's for hoping this works so I don't have to order a $5.00 part
because that would be devastating.
Kinda off topic, but personally whenever I perform the Option B repair I always replace the shuttle valve switches. I’d rather do the job once and not have to worry about it for nearly another 20 years. I’m sure some of the shuttle valve switches I’ve removed were fine, but they’re not expensive these days so I always replace them.
I’ve also seen several D2’s with Option B performed & it was still randomly faulting. Found the new ground either wasn’t clean enough or wasn’t a good enough ground.
SAI nipple wise you can usually find new ones on the Misc HELP isle at most auto part stores.
I’ve also seen several D2’s with Option B performed & it was still randomly faulting. Found the new ground either wasn’t clean enough or wasn’t a good enough ground.
SAI nipple wise you can usually find new ones on the Misc HELP isle at most auto part stores.
Last edited by Best4x4; Feb 28, 2019 at 10:40 AM.
Camel Trophy
Joined: May 2016
Posts: 3,969
Likes: 859
From: Britainistan, UK
I've been thinking of replacing the steel and plastic SAI tubing with 3-ply silicone hoses. I don't know if this is even a possibility with the air pressure and heat from under the hood.
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Rock Crawling
Joined: Apr 2017
Posts: 315
Likes: 45
I don't remember what I ate this morning so I can't tell you what I used.
If I replaced a softline, I went to autozone and bought some 5/16" vacuum line. It holds up well in engine bays, I've been using it in a MINI Cooper track car with no issues. It runs the wastegate vacuum so it gets nice and toasty.
If I replaced a softline, I went to autozone and bought some 5/16" vacuum line. It holds up well in engine bays, I've been using it in a MINI Cooper track car with no issues. It runs the wastegate vacuum so it gets nice and toasty.
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