So red mutt needs a tune up.
Drifting
Joined: Apr 2011
Posts: 1,925
Likes: 441
From: Albuquerque NM
Appreciate all the pictures. Would love to be of assistance, but not exactly sure what the problem is in particular that you're asking for help with? Also FYI you can post multiple images in a single post.
Thread Starter
Advanced
Joined: Apr 2023
Posts: 99
Likes: 14
From: Erie Pa.
Thanks all.
So going to replace the plugs wires cap and rotor.
Questions are, what type of plug do you reccomend?
Should I use that coil or replace?
Is that the original MAF?
Doing an oil change on it, fuel filter change and look in the chassis manual to see where that plugged up with a bolt vacuum port goes.
Oh and no, shouldnt be high mileage. But heard the engine was replaced and had "some work" done to it. Who knows.
So going to replace the plugs wires cap and rotor.
Questions are, what type of plug do you reccomend?
Should I use that coil or replace?
Is that the original MAF?
Doing an oil change on it, fuel filter change and look in the chassis manual to see where that plugged up with a bolt vacuum port goes.
Oh and no, shouldnt be high mileage. But heard the engine was replaced and had "some work" done to it. Who knows.
Safety Car
Joined: Jul 2003
Posts: 3,503
Likes: 880
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
You have an adjustable fuel pressure regulator there..Put a gauge on it and see what the fuel pressure is.
As far as plugs, run some regular NGKs in it until you get it sorted out.
I would also start running some de-carbon through the engine a little at a time. If the plugs are that bad, your valves are too.
As far as plugs, run some regular NGKs in it until you get it sorted out.
I would also start running some de-carbon through the engine a little at a time. If the plugs are that bad, your valves are too.
Drifting
Joined: Apr 2011
Posts: 1,925
Likes: 441
From: Albuquerque NM
What is the particular issue you are trying to address? The rich running? New ignition components won't change the AFR. They might help with getting a complete burn however. At the same time new ignition components is a relatively inexpensive way to freshen up an older car regardless. I do support new plugs, wires, cap, and rotor. I used E3 plugs only because they were the nicest plugs available same day at my parts store.
I would only replace the coil if it is loose, but I also am in a more frugal mindset of of recently. If you find an inexpensive coil option it certainly wouldn't hurt to have a new one in there.
As far I remember those two rearmost vacuum ports... one is for the fuel pressure regulator and the other I believe is either for EGR or the evap system, both non essential and emissions related.
Back to the issue at hand... Running rich. Was this confirmed with O2 sensor code or just by smell and backfiring behavior?
Maybe you have an injector stuck open or a malfunctioning fuel pressure regulator. Have you checked the fuel pressure with a gauge?
I would only replace the coil if it is loose, but I also am in a more frugal mindset of of recently. If you find an inexpensive coil option it certainly wouldn't hurt to have a new one in there.
As far I remember those two rearmost vacuum ports... one is for the fuel pressure regulator and the other I believe is either for EGR or the evap system, both non essential and emissions related.
Back to the issue at hand... Running rich. Was this confirmed with O2 sensor code or just by smell and backfiring behavior?
Maybe you have an injector stuck open or a malfunctioning fuel pressure regulator. Have you checked the fuel pressure with a gauge?
