EGR check engine light?

[YayItsJake]

ok so i had my check engine light pop on during an hour long highway drive and getting into traffic that required a little, lets call it, ENERGETIC driving(read city traffic, rush hour, and i was lost). so i may have revved her a lil hard but nothing near redline. so i figure since before i bought the Ranger the PO had it sitting for 2-3 months while selling it. . .ok the extra effort driving knocked some gumbo loose in the exhaust and i fouled my O2 sensor. no biggy, replaced one on my old CRX. but i was smart and went to autozone and had em hook my truck up to their nifty hand held thing. found out it was 2 different codes, "Insufficient EGR flow" and Excessive EGR flow". so now me and the parts guys are scratching our heads. . .insufficient and excessive? well at least i know its the EGR right?

i roll on home and pop the hood to locate the SOB thats gonna fail my E-check. i'll be damned the thing looks brand spankin new!

but i still do what parts guy and mechanic at work say to do, pull it off, spray it with carb cleaner, suck on it to move the diaphragm and work it loose, then re-install it. WOOT no more check engine light (after i pulled the battery cable to reset the cpu)

so my question after this is all said and done. . .what could foul a brand spankin new EGR, and did i do good in my actions?

be nice, i'm used to OBD1 hondas and classic VW bugs. TYIA!!

 

[tdog]

doubt that was it, it is usually the dpfe sensor(the sensor that reads what the egr valve is doing,) it is the sensor with the 2 hoses coming off of the egr tube.) I know this because I work for the "enemy" at a Ford dealership. I haven't put on an egr valve in probally the last 2 years, but put those sensors on every other day.

 

[YayItsJake]

so the question is. . .will i pass e-check tomorrow?