154 code after radiator change Topic is solved

swe280Z · Post by **swe280Z** » 19 Sep 2016, 21:38

I recently changed my '94 855 NA radiator and a temporarily-patched air inlet hose. The car was running great(105K) but I got a 154 code a day or two later. I cleared it but it comes back after a few minutes. I may have swapped the small hoses above the fan shroud when I reinstalled it. I also have a slight miss at idle along with the 154 code. Does anyone have a picture or drawing of the small hoses that run up to the top of the shroud related to the EGR? I should have labeled them instead of relying on my 70-year-old memory! Thanks in advance.

Post by **scot850** » 20 Sep 2016, 03:24

Most Volvos should have a vacuum layout sticker under the hood. Have you checked there?

Neil.

swe280Z · Post by **swe280Z** » 20 Sep 2016, 22:04

Thanks for the reminder. I'll check it out again.

swe280Z · Post by **swe280Z** » 28 Sep 2016, 21:46

Turned out that the two stacked vacuum lines above the fan shroud were swapped. Running great again. Thanks.