Problems after new exhaust

[97 EclipseRS-T]

Recently I installed my new Megan Racing exhaust. Header test pipe and cat back. All brand new. I also have Weapon R Secret Weapon intake, new spark plugs and wires, two new o2 sensors, and a new timing belt. After installing the exhaust it gradually smoked more and more, and didn't before with the stock exhaust. I took the silencer off the following day. All was well, it sounded great and everything was running fine. Roughly two days later it randomly started missing, and today it completely stalled out. So i got it back home and went to work in another car. When i got home i put the silencer back on and got a new fuel filter. When i went to test drive it, it was driving fine then started missing again, then it stalled out again and when i went to start it up again it won't turn over at all. I waited a while and try to start it again and it started up. If driven easy,(not shifting over three grand) it doesn't miss(RANDOMLY).

If anyone has any ideas, or could help me out, it would be much appreciated.
Thanks.



Nick.

 

[yepes281]

Spark plugs good? maybe a cam sensor.

 

[95TalonOwner]

Exhaust would never cause a problem like the one you are having.

 

[97 EclipseRS-T]

I thought it may be fuel related.

 

[zero_wheeler]

how fresh is you ignition coil pack? i had a 98 gs for 3 years, one day it started missing under load, easy driving was fine until you layed on it, and it gradually got worse, bought a new coil pack on ebay for like 30 bucks, problem solved. yours sounds a bit more drastic though. id try a coil.

 

[xhackerekx]

check MAf sensor

 

[97 EclipseRS-T]

No MAF i believe and new coil pack.

 

[mazda-man]

I also would check to make sure your tube seals haven't started to leak into the plugs. Had that happen to a couple of my cars and just a slight amount of oil is needed in between the plug and wire and it will miss terriable. Mine started only during hard runs but then got to the point where you could barely drive the car.

 

[Fotowntalon]

start with the things you changed, wires and plug, plug gap, its always possible (although unlikely) a new part you got was defective, like an 02 sensor, causing you to run extremely rich/lean. I know its an obvious question but hasnt been answered asked, whats the CELs?

 

[97 EclipseRS-T]

So I finally got a CEL, pulled the codes and got two. P0340-Camshaft Position Sensor A - bank 1 circuit malfunction & P1391-Manufacturer control ignition system or misfire.

 

[97 EclipseRS-T]

Everything is running fine now it was the egr tube melting my wire harness. Thanks for all your ideas and help.

 

[Fotowntalon]

glad you got it fixed, thats sadly a common problem and normally hard to solve because it seems to come out of nowhere