white89gt

You tell us. Why is it necessary to continually create new usernames and rehash your problems?

97xCab

not really sure whats goin on here but i havent made any usernames but this one

white89gt

So when you pull the injectors 1, 2, and 3 individually it doesn't change how it runs?

97xCab

i dont recall saying anything about injectors?, mine are only 15k miles old?

fordguy2100

Why don't you do a compression test and post some pics of your engine bay

97xCab

compression is good all the way around, well its 140 but i think the highest it should br is 155 from what ive read, ao i know its not that, but the power loss along with gas mileage drop is whats getting me, im thinking its out of time but curious if theres an easier way to check without removing the cover

fordguy2100

Ok well 1. It matters the range of all of your cylinders and how close they are to each othe ... not just it "shouldn't be more than 155" don't know where you even heard that. 2 Yeah if you can't post the compression test numbers for each cylinder just leave the forum cz we are tired of skylar. And anyone like him. We can't help you if you won't help us. Post the numbers of EACH cylinder if you actually have done a test. 3 Compression test can tell you a lot about the health of your engine and can help point to a direction with power loss if it's related. 4 Also you should probably have all 4 cats on your truck and all 4 02 sensors.

And sure if you want to check timing put a timing gun on it

Jbrew

Disconnect the injector one at a time while running, then reconnect. Test each one, anything strange occur while testing ? What type of injectors did you go with, were they new ?

What kind of cat's are you running and how many ?

Plugs and coils, which are you using ?

fordguy2100

97xCab

compression is 137-140 all the way around
injectors are OEM and they were new
only thing that happens when i unplug them isnit starts missing
Cats are stock, and it has around 210k miles the o2 sensors have been replaced but not sure what brand they were