Join Date: May 2004
Location: Morganville, NJ
Thanked 17 Times in 14 Posts
The car doesn't have a mass air flow sensor. A 1998 is speed density and only has a map sensor.
Replacing the EGR valve for a low flow code is putting the cart before the horse. Without testing to see if the valve actually works, and whether the port in the intake is blocked. A very, very, very common issue on V6s. (blocked port)
You need to pull the upper intake and manually clean out the port in the upper intake. Take off the EGR valve and clean the port from the lower intake to the EGR base in the water crossover.
Once you're done cleaning it out, clear the codes. Test drive the car and within the first 5 miles or so, get it over 60 and coast for at least 5 to 10 seconds, it will test the EGR system for flow during this time. The light should stay off as long as the ports are clear.
Do a search, there's several good threads with pics.
Sapphire blue '04 V6 6 speed w/ full HFP, comptech ss, momo shadow, TL-S 27.2h/20 bars, intake spacer, retro chrome MH1 HIR2 highs, hella DE fogs, EBC Ultimax, subwoofer/amp, infinity rears, HD Radio, aux adapter, navi conversion.
Vermilion 1999 SVT F150 Lightning, Sylvania/Visteon Xenarc HID headlamps, '01 L turn/marker lamps, PIAA fogs, '01 up Bilstein shocks, all Pioneer speakers, Clarion subwoofer. All Redline fluids.
Silverstone 2003 Honda S2000, bone stock