So I got a p0430 today

good ole p0430 code today wanted be the best. Have the converters replaced or say. Screw it and straight pipe it or is there another way around it..... I think I posted this befor

 

Thanks as always Chris. Ganna look at all this today after work.

 

first you cannot use a straight pipe or do away with cat on a registered vehicle. Enough said.

Then we need to find out WHY the current cat failed - before the second one follows.

Post ALL codes - use a scanner. Did you have any lately as misfires are cat killers.

Any engine mods or powertrain BS ? STOCK is best.

 

I have everything stock and I have had a multiplie cylinder misfire for a few days now but all that is brand new and I straight piped my old car and it passed inspection lol but I know what your saying

 

If you have a SCANNER - post all data - codes, ECT, FT's. B2S1 B2S2,

no scanner -
If driveable have the system scanned at one of the part stores that does FREE scans...

I do not understand 'all that is brand new" ? misfire is new?

 

Parts are like 6 months old plugs wire n everything I’ll get the codes up inna few minutes. I’m in the middle of putting in a bay window inna house lol

 

I will ck later -

Did you use correct plugs? lots of aftermarket plugs are problematic.

 

I used the plugs that are recommended don’t normally like aftermarket plugs

 

Good - I think Champion is OEM and - explain later.

do you have a scanner - live data?

Try a free scan at the auto part stores...

 

I have my super chip I bought with that cake with Jeep it has the codes in it

 

the super chip is this a performance chip AKA pos?

OK here is my thoughts/plan, we would correct the cause for the P0430, why I asked if its stock.
FYI cats are warranted for 8yrs you MAY be in that window. And letting jeep have at it.
BUT We need it stock for that avenue AND Super Ship wont work. You are modified. Good by warranty.

And for a DIYer repair a scanner is needed to see live data see reply #6.

 

Flashpaq F5 is what it is

 

set the jeep tune to stock.
do not change tire or gear if it was re calibrated.
Copy ALL codes showing - post here.
we will go from code list

 

There’s a couple more codes but that’s from the new led headlights. but that’s what I have pop up

 

every reply is a reveal - a POS programmer, p0300, cruise control, exhaust, and NON OEM LEDs.

Any chance the exhaust has been F'ed with?
Any exhaust leaks?
Will programer read live data ie B2S1 o2 voltages?
Is the ABS or traction control on light - is it coming on @2seconds at every start for bulb check?


I am looking for a TSB while you reply.

 

Stock exhaust no leaks in it. abs and traction control come on like normal when starting the car then shut off right after. And no the filter is stock don’t use k&n.

 

All the easy ones are being dismissed -

I think the p0300 p2098 and p0430 are related. a multi misfire, and post cat o2 sensor readings issues.

The LED issue self inflicted, the Cruise control with the easy ones dismissed will be a wire check not a priority.

Ideally we want to look at fuel trims and the o2sensor voltages- that will let us see a mixture issue, fuel compensation, and sensor range - lean or rich... Now how to do without a scanner...
will Post an idea later...

PO579
Possible Causes
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(V71) S/C SIGNAL 1 CIRCUIT OPEN
(V937) S/C SWITCH GROUND CIRCUIT OPEN
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO GROUND
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO THE (V937) S/C SWITCH GROUND CIRCUIT
CLOCKSPRING
SPEED CONTROL SWITCH
POWERTRAIN CONTROL MODULE (PCM)

 

I see that superchip MAY show live data - I saw owners manual page 24 --advanced - check into that
this will show all if it is available.....

 

I’ll look in to that now idk if mine will I bought the basic one