Jordnalos

Trying to help my parents now because they've been having a problem with their 2008 MDX for a month. They told me it started with a check gas cap light but now the system is constantly pulling up check engine lights with random misfiring. Went with them today and the codes that came up were P0300, P0301, P0303, and P0306, and of course the SH-AWD 77 code along with it. Talked with the technician and he said the work they've done is valve adjustments, induction carbon cleaner, and constant diagnostics on cold and warm starts and how the misfiring starts. Did some research and asked about the EGR valve and he said they tested it and it's working properly, yet they haven't seen this kind of recurring problem and after communicating with Techline, the final job is new injectors because they believe it's worn and the service advisor says a bad tank of gas can cause it...this is the 4th time since June coming back for the same codes. From what my dad says it runs normally, so is it really time for new injectors?

justnspace

iTrader: (1)

pull the EGR valve off. it's simple. two bolts holding it.
check to see if it has carbon built up in it.

if it has, clean it. then put it back on


hopefully, your parents are using premium fuel

Jordnalos

Yea, checked it this morning and they cleaned it up from the induction service. I can't do it myself because he drove it to work to get another tank of gas through but we've been using the same premium gas at the same Exxon since 08 so it's weird that now it started to throw codes