Did a lot on the Protege this past month.....I had a couple of issues!!
A misfire on cylinder 4 : so, I put the ignition coil on cylinder 2, and the code gave me misfire on cylinder 2....SO, I know that the ignition coil was bad : I replaced it
I also replace all 4 spark plugs with Bosh Iridium plugs ( the plug on Cylinder 4 was def dead!!!!)
Also replaced the Valve Cover gasket as I could see some drops of oil on the corner....however, the car is not leaking oil ( I have been driving over 1000 miles in April, and the oil level is still the same..this car has never burned oil!!!!! and I did take it cross-country several times since 2002 ( FL to CA ( 3 times )...as well as FL to ME every year)
I did put some new tires on Friday ( the last set of Michelin was from 2010....the back is still great)
I also replace the O2 sensors ( which were also getting long on the tooth)
New Air filter
I repainted my center console in Black ( i did painted blue about 7 years ago....lol....)
Oil change coming up next week ( I have been using Castrol GTX high mileage 20w50 since 80000 miles )
Well....I will also be trading the Protege for a 2014 Mazda 2 in December!!
As of today, my protege has 288000 miles and will get 300000 miles by december......it still runs strong!!!!
I also did my own Compression test ( over 180 on all cylinders )!!!!! not bad for a 1999 car!!!