Stevo3

After replacing the MAF sensor, I still get the bank 1 too lean code . Was a pretty penny to replace in the first place. I then was thinking of changing the O2 sensor before the cat. But before I spend anymore unnessesary money, I thought I'd have a another look under the hood.

Well, After looking over the hoses on my truck, I did notice a Hissing noise comming from the S/C. All my hoses are correct and okay. But I have the GEN I S/C (the grey one). And the hissing is comming from the "thing" near the bypass vavle. I dont know what its called But its like a rectangled piece that fits into the intake part then turns into a cylinderish piece next to the bypass valve.....

Anyways I think this is the main culporate to my "Bank 1 Too Lean" code. As the truck gets up to temp, Its starts to run pretty rough (engine rocks back and forth). I then place my hand over the part thats leaking and it idles back to normal, which is smooth running. Is there anyone out there with they Grey S/C? I think Gadget has one but I would think he has upgraded to the newer one.

My Question is now, am I able to use the Hi Temp Gasket maker to put in the part that is sucking in extra air? Because I cannot find anything about a true Gasket for that area. Thanks for the help!

Stevo3

Anyone with the same Gen S/C? Need some assistance.

MTL_4runner

I posted over here:
https://www.yotatech.com/forums/show...90#post1003490

Stevo3

Yeah i just noticed after i bumped it, after looking everywhere for the same issue, you bring it up.... i couldnt find anything nor did i think anyone still had the oldschool S/C, thanks for your help man, you seem to know quite a bit