Yes, I searched.
I changed the intake gaskets on my '97 this weekend. I got a P1406 code for the EGR pintle in the wrong position. It seems to run just fine, idles good, no ill symptoms other than the check engine light.
I didn't clean the EGR passages and didn't think anything of it
I read some threads about spraying carbon cleaner in the hose going back to the exhaust. What can be done with the passage going to the intake? Can the EGR valve iteself be spray cleaned?
Any words of caution about cleaning these?