dying protege 5.. need help!!

[senseipook]

I have a 2003 protege 5, have been having problems with it idling rough and dying while at stops..I just did a tuneup- new plugs, wires, coils, air filter. Now its running horrible.. I've even re-set the computer. Now when it is idling below 1100 rpm, it idles very rough and dies everytime.. this is my work transportation, so I need to fix this ASAP.. can anyone offer me some advice?

 

[KILsWITCH]

needs an egr valve.

 

[senseipook]

Thanks! Can I just clean the old one? Is there any way to check it to verify?

 

[naji]

check your air intake hose too. might be cracked. is your check engine light on?

 

[senseipook]

Already checked it- good shape. Atf first, it threw a misfire code. That's why I changed the parts I did. After I changed the ignition parts, I cleared the computer, and it has run horribly ever since..

 

[naji]

yea then its probably your egr valve then. you should get it replaced. if its dying when your idling.

 

[PRO5.REL]

it could be ur egr valve or maf sensor.

 

[senseipook]

Ok.. well how can I test to verify which is the problem?

 

[PRO5.REL]

only way i could think of testing if its the MAF sensor is to clean it with carburetor cleaner thats o2 sensor friendly.

 

[drgnzadiel101]

they do sell MAF cleaner specifically now. you can clean your EGR valve with carb/egr cleaner. i'd do that first. sensors are crazy expensive even used. also check for vacuum leaks! also check o2 sensors. good luck!

 

[PRO5.REL]

there it is...

sorry imma brokeanic thats why

 

[drgnzadiel101]

lol arent we all?

 

[azuelke]

Swap MAFs with a local Protege owner if possible... if problems still occur, clean or get a new EGR. There were some new Canadian EGR valves on ebay last week for a steal, might want to pick one up just in case.

FYI, the Canadian EGR valves are better.

 

[linwiz]

doesn't shaking a egr valve tell you if its working or not? if it doesn't rattle then replace it?

 

[tweety2300]

Never heard of a shake test other than wrapped presents. But I would say clean the egr. I would fix the problem soon before you bake your precat that 400 bucks right there if you have emissions if not an excuse to spend 100 bucks on a header to remove it

 

[P-Funk!]

doesn't shaking a egr valve tell you if its working or not? if it doesn't rattle then replace it?

^That is how you test the PCV. Do this too. An oil-fouled PCV caused my engine idle to be rough.

 

[senseipook]

Hey guys- thanks for all of the help! In the process of reinstalling my egr after cleaning it.. it was packed tight! Will post after I run it.. thanks again!
In the near future, ill be asking for input on customizing and performance..

 

[senseipook]

I just wanted to thank everyone who helped me with this issue.. your advice and suggestions helped me greatly!
l

 

[Dragnfly Racing]

CAn I get in on this? Sorry to hijack your thread.......

New guy here. 1st post.

I also have a 2003 Mazda Protege 5 with a similar issue. I was coming home from work and out of nowhere it starts pulling down, I could feel the car lag at a constant speed. It went away, then later that afternoon it popped a PO300 code. I did the obvious, changed plugs, checked for vacuum leaks, cleaned EGR valve. My EGR was clean and felt OK. I opened it with a screwdriver and the spring felt strong, etc. So I cleaned it up and reinstalled it. I made it about 1/4 mile before it started acting up again.

Now sometimes I have plenty of power and it will redline in a heartbeat, other times, I can be cruising at 60 and when it happens it won't accelerate at all. I can put it to the floor and it will only maintain. I don't want to just change parts to be changing them. Where would you go next?

 

[tweety2300]

Coil packs are bad