2 engine codes thrown

[evil tsi]

the car is a 99' eclipse gst and i have 2 codes thrown. the first is cylinder 1 misfire and the other is fuel trim malfuntion bank 1. id imagine the codes are related. the car falls flat on its face outside of boost. ive replaced both o2s and maf thinking that would help but no change. after the car started acting up the boost fell off at top end(badly). so i went ahead and put on a sbr header and 38mm wastegate thinking itcould be the wastegate. the problem still persists. Im leaning towards a faulty injector on cylinder 1? any help would be greaty appreciated.

 

[96 420a-t]

That deffinately doesn't sound like a bad idea, try this. Swap your number one injector with your number two. Clear the codes and see if it comes back misfire for cyl 2

 

[evil tsi]

would i have to replace the o ring off of the injector by doing so? i have a set of blue top injectors off a 1g also. I know the 2gs are 450s not sure if they flow the same? or are interchangeable(plug and play)?

 

[96 420a-t]

I'm not sure about the fitment but I'm sure the injectors seal would be ok, this will eliminate or pin point your roblem. If your I jector is bad than see ab out swapping them out, nos sense changing inj if its not needed. Imo of course.

 

[evil tsi]

this is a daily driven car with tasteful mods. so is there somewhere(besides the stealerhip) to get a set of oe injectors? the local parts stores dont have them, which was shocking. I dont want to go bigger just bc i dont want to mess with tuning the car.

 

[96 420a-t]

You can see if anyone on here has a set of stockers laying around, or someone parting out a car.

 

[evil tsi]

very true . so if the injector isnt the problem... any other ideas?

 

[96 420a-t]

Plugs/wires, coil, compression. In that order of most likelyness.

 

[evil tsi]

new plugs and wires, the coil would be the next best bet. thanks for the help

 

[96 420a-t]

No prob, best of luck to you.

 

[evil tsi]

just found out that advance has the injectors for 61.49 each. gonna get a set and hope it works.

 

[96 420a-t]

I would test it first, but hey, I'm not made of money.

 

[evil tsi]

the injectors have almost 200k on them so imo changing them out even if they are good wouldnt be a bad idea. the pump also has that many miles on it so it could be a weak pump but the rail feeds from both ends? the filter is new so thats def not an issue

 

[96 420a-t]

if it was your pum you would get a P0300 random/multiple misfire, but if your money is burning a hole in your pocket go for it. With that many miles I would reccomend a compression test.

 

[evil tsi]

only 60k on engine. ive already dumped way too much money into the car(typical dsm) i have almost 10k in a car thats only worth like 4K. so at this point i just want it running right

 

[96 420a-t]

Fair enough, since its a newer engine its inj. Or coil.

 

[evil tsi]

thanks again for all your help and your fast responses. if it fixes it ill be sure to mark it solved

 

[96 420a-t]

No prob. I m always on here since I have no life.

 

[evil tsi]

it was the injector after all