2G EGR Valve & Map Sensor

[jmeadz]

My check engine light has been coming off and on here and there, I'm pretty sure its a common problem with some DSM's because I owned a talon before my eclipse and it did the same thing..so the results reviled I have a bad EGR Valve and Map sensor...I just bought a map sensor off of eBay and was wondering if I should fix the EGR valve as well? I am getting a little rough idle as well as bad MPG...I am going around 210 miles on a full tank. Also I am getting my car looked at next week...when I start the car in cold weather it squeaks...I am not sure if its the belt or tension or pulley? hope all goes well and I can get all the problems fixed ASAP!

 

[Purex2c]

You could just block off the EGR valve, as for the squeak I would check the tension on the belts. Or have someone else start it while you listen under the hood….to see where it's coming from.

 

[jaredS83]

I always have to tighten the alternator tension bolt and it will stop squeaking for a while but it comes back.

 

[DKJson2112]

I had the same problem with the alternator belt ^^^. Make sure you tighten all three bolts involved with the alternator. As for the EGR valve, I'm getting the same CEL. How do you block it off?

 

[grothe3297venge]

Just look up 420a egr block off kit on ebay and you can buy the block off plates for like $15. Also I would try to find one that comes with gaskets, one less thing you have to worry about.

 

[DKJson2112]

What exactly does the EGR block off plate do to help anything? And I'll be sure to look one up for the 4G64 engine that I have.

 

[grothe3297venge]

Oops thought you were the OP with a N/T sorry. It does just what the point of the block off kit is for, to block the Exhaust Gas Regulator's (EGR) air from cycling. Here's what others have said - http://www.dsmtuners.com/forums/bolt-tech/412942-whats-point-egr-block-off-plate.html

 

[DKJson2112]

Thanks for the link. I am a N/T, but the Eclipse GS Spyder is a unique breed. It's the only one with the 4G64 2.4L SOHC instead of the 420A or the 4G63 2.0L DOHC. I wouldn't have expected anyone that hasn't dealt with the Spyder personally to know that off the top of their head. I just thought I'd let you know.

 

[jmeadz]

I got the map sensor off of eBay hope my MPG goes up because ever since I got the car its been garbage..only around 200 on a full tank!

 

[reck]

I would check the belt tensioner and the also the belt itself to make sure it not frayed or cracked anywhere

 

[DKJson2112]

I got the map sensor off of eBay hope my MPG goes up because ever since I got the car its been garbage..only around 200 on a full tank!

That could be from the egr valve. Does an EGR valve malfunction decrease fuel economy? Is it worth it to replace for 94 Jeep Grand Cherokee? - Yahoo! Answers