MikeyP1990
Member
- :
- 2003 Mazda Protege LX
hi, new to the forum. i have a '03 protege lx with the 2.0. just had the dealership do the timing belt and water pump on it at 103,000 miles. it was starting to get a rough idle like it's missing but it isnt throwing any codes for the CEL. so after the timing belt was done the dealership said ill probably need a new EGR valve so i put a new one on and it still has a rough idle but its still not throwing a code and they said they couldnt find any vacuum leaks. is there any where i should look next? ive replaced the EGR valve, plugs (NGK) coils and wires, cleaned the TB and still no better results. :/ any advice would be appreciated. possibly MAF? whats the parameters for the sensors since i have a scan tool.
