Is there an internet accessible place for the codes. I took the truck (96 discovery 4.0 168+K) to get it emissions checked. Came back with 7 codes, which I knew would happen , I got 8 on my reader. I was able to clear them all except the ever popular 1316. So, I just sea-foamed it and got new plugs and 7mm wires. After I cleared the codes and fixed the problem I got the 1316 after about 24 - 26 miles. Are 7mm good enough? Maybe I need to upgrade the plugs?

 

What brand of wires are you using?
Because of the different catagorys of codes, you won't find them all on the same list.
What were the other codes, be specific if you still have them?

 

P1372
1374
0300 - the report says: Random/Multiple Misfire Detected
0303 - Cyliinder 3 Misfire Detected
1316
1314
1313

the interesting thing I have found is that a few resources (including this forum) have resulted in a 1316 being for emissions yet, my reader says its related to 'manifacturer ignition system' I have noticed a passanger side exhaust leak at the connection of the manifold and the pipe.

 

1316 is an excessive emission misfire for sure.
1313 and 1314 are cat damage, both A and B
1372 ia a early ignition coil activation fault for #1 coil
1374 is a early ignition coil activation fault for $4 coil
You do have work ahead of you still.

 

Well, I was able to take care of most of them. Now I can drive a while, and then throw it on the reader. All I get is the 1316 anymore. So I will clear them all out and go for a nice long spin, let the sea foam do its thing and see what comes up in the morning.
I bouth a new coil (two prongs) to replace the one associated with number 3 as I was thinking it was the faulty one. I will see what happens and hopefully dont need to install it and can get the 90 bucks back.

Oh Autolight is the wires and plugs. Advanceauto had them.

 

for a simple library i downloaded the autoenginuity pc program, free to download just have to pay for the obd2 connector. but the program has a generic p code library.

 

Just took it back to get tested and the same codes come up:

1313 and 1314 (which I now know are both cats, I guess I need new ones?)
1372 and 1374 ( coils do I need an entire new set or just the two?)
0300 ( I am thinking when the other stuff is fixed this will go away)
and now, a new one, 1193 (no idea)

So far I am thinking new cats and coil pack, is that about it?

 

1193, 02 heater circuit open downstream.
Have the 02's been replaced yet, by mileage they are way too old, may not be the problem though.

 

Not to my knowledge. I just got the car and have now way of knowing the history. Right now I am just trying to consolidate a list of things to do so I dont waste money on things that dont need fixin. They probably need replacing so I will just add to the list.

 

I would replace the O2's before I did the cats.