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- #9823
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Hello!
I recently bought a 2015 Fiesta ST off of a "trustworthy" dealership.
It seems like it is in good shape, 47000 km, No accidents etc.
However, there's that damn P219A code being thrown.
As you can imagine I'm not thrilled about my brand new car throwing that error.
The error started after the 24hr period that Alberta law lets you return the purchase (so my dads dealer friend says)
I've reset the code multiple times now, it is persistent.
I was hoping you guys/girls could point me in the right direction.
First, some info!
This seems independent of how I drive it.
I reset the code, and waited for the engine to warm up, then drove it hard again.
That does not immediately set the code.
In each case, I am driving it for 30min + before the Check engine light goes on.
But it does each time.
Non stock parts:
- Cold Air intake (there is a plug that looks like it used to connect to a sensor in the stock air intake, it is dangling there.
- Performance chip. (Ill talk more about that further down).
- No Cat!?!? / Wide Exhaust.
Since it is the P219A error, all of these are suspect.
How it behaves:
It runs fine. It has some power to it, and idles smoothly.
On start up, the engine does jump around a little bit by 50 - 150 rpm while it settles down to 1000 rpm idle.
I haven't burnt a full tank, but I've Added a full can of sea foam when I got to a 1/2 tank.
I filled it back up with premium (prob should have just burnt the first tank).
So far I'm at 350km, and 45 - 48% of the tank left.
The car does not backfire, even under hard driving.
It has 3 -4 times since I've bought it, but it seems like the turbo barking (hard on the gas, braking, small pop sound from the exhaust).
Also, I sprayed a full canister of sea foam into the air intake (from that hose that connects to the intake manifold just ahead of the intake ports themselves).
Aside from a minor performance change, and a major smoke show, that did not get rid of the error either.
What the shops says:
I went to a shop and they hooked my car to their computer and did a diagnostic, they didn't find anything wrong.
The injectors are good, fuel pressure is good, apparently the ignition system has no misfires, and is timed correctly.
The sensors appear to not be the problem either (computer didn't find anything).
On the sensors, this leads me to my first question:
Could the sensors be faulty anyways?
Since there is no cat, I would assume the likeliest is the sensor down stream from the "cat".
Unburnt fuel might cause the air fuel mix fault (maybe?).
Is there another sensor before the catalytic converter?
Also, the performance chip.
I was doing some reading on-line, and I noticed that most chips interface with the Engine control unit, and modify the fuel air ratio for more precise tuning .....
So that stood out like a sore thumb to me.
So. I'd like to remove that chip, and see if that gets rid of the P219A code.
Here's the problem: I have no idea where the "chip" is.
It was noted in the dealerships inspection, but makes no note of where it is located.
I don't want to talk to them, because I think they'll try to sucker me into bringing it back into their shop for $100+ or something.
And as you can deduce, it's not one of those ones that fits onto the OBD2 connector.
First question about the chip:
Is it safe to remove it?
If I disconnect the battery, and remove the chip, reconnect the battery, and start the car, will there be zero ill effects of doing that (Minus the performance decrease)?
If you guys need to know what kind of chip it is before answering that question, please let me know which locations the chip could be, Ill find it and take pictures.
Id much rather have a car that isn't wearing itself out due to the previous owner not setting it up correctly than having extra power, and then killing the engine (I paid 15k for this car).
Also, if anyone wants to trade a stock air intake for a oiled cold air intake let me know.
Actually, if anyone wants to trade a no cat exhaust system for a stock 2015 exhaust let me know .
Finally, there is a chance that I bought a lemon(or maybe a lime?), and that there is engine damage.
Given that there is no smoke out the back, it idles fine, and the fuel economy is "normal" is this a likely scenario?
My last car had a check engine light for a slow O2 sensor. It had 320,000 km on it. So I didn't care.
My Fiesta has 47,000 km on it.
I do care.
Can anyone help me get going on this mystery? I would like to have some peace of mind with my car.
Thanks!
I recently bought a 2015 Fiesta ST off of a "trustworthy" dealership.
It seems like it is in good shape, 47000 km, No accidents etc.
However, there's that damn P219A code being thrown.
As you can imagine I'm not thrilled about my brand new car throwing that error.
The error started after the 24hr period that Alberta law lets you return the purchase (so my dads dealer friend says)
I've reset the code multiple times now, it is persistent.
I was hoping you guys/girls could point me in the right direction.
First, some info!
This seems independent of how I drive it.
I reset the code, and waited for the engine to warm up, then drove it hard again.
That does not immediately set the code.
In each case, I am driving it for 30min + before the Check engine light goes on.
But it does each time.
Non stock parts:
- Cold Air intake (there is a plug that looks like it used to connect to a sensor in the stock air intake, it is dangling there.
- Performance chip. (Ill talk more about that further down).
- No Cat!?!? / Wide Exhaust.
Since it is the P219A error, all of these are suspect.
How it behaves:
It runs fine. It has some power to it, and idles smoothly.
On start up, the engine does jump around a little bit by 50 - 150 rpm while it settles down to 1000 rpm idle.
I haven't burnt a full tank, but I've Added a full can of sea foam when I got to a 1/2 tank.
I filled it back up with premium (prob should have just burnt the first tank).
So far I'm at 350km, and 45 - 48% of the tank left.
The car does not backfire, even under hard driving.
It has 3 -4 times since I've bought it, but it seems like the turbo barking (hard on the gas, braking, small pop sound from the exhaust).
Also, I sprayed a full canister of sea foam into the air intake (from that hose that connects to the intake manifold just ahead of the intake ports themselves).
Aside from a minor performance change, and a major smoke show, that did not get rid of the error either.
What the shops says:
I went to a shop and they hooked my car to their computer and did a diagnostic, they didn't find anything wrong.
The injectors are good, fuel pressure is good, apparently the ignition system has no misfires, and is timed correctly.
The sensors appear to not be the problem either (computer didn't find anything).
On the sensors, this leads me to my first question:
Could the sensors be faulty anyways?
Since there is no cat, I would assume the likeliest is the sensor down stream from the "cat".
Unburnt fuel might cause the air fuel mix fault (maybe?).
Is there another sensor before the catalytic converter?
Also, the performance chip.
I was doing some reading on-line, and I noticed that most chips interface with the Engine control unit, and modify the fuel air ratio for more precise tuning .....
So that stood out like a sore thumb to me.
So. I'd like to remove that chip, and see if that gets rid of the P219A code.
Here's the problem: I have no idea where the "chip" is.
It was noted in the dealerships inspection, but makes no note of where it is located.
I don't want to talk to them, because I think they'll try to sucker me into bringing it back into their shop for $100+ or something.
And as you can deduce, it's not one of those ones that fits onto the OBD2 connector.
First question about the chip:
Is it safe to remove it?
If I disconnect the battery, and remove the chip, reconnect the battery, and start the car, will there be zero ill effects of doing that (Minus the performance decrease)?
If you guys need to know what kind of chip it is before answering that question, please let me know which locations the chip could be, Ill find it and take pictures.
Id much rather have a car that isn't wearing itself out due to the previous owner not setting it up correctly than having extra power, and then killing the engine (I paid 15k for this car).
Also, if anyone wants to trade a stock air intake for a oiled cold air intake let me know.
Actually, if anyone wants to trade a no cat exhaust system for a stock 2015 exhaust let me know .
Finally, there is a chance that I bought a lemon(or maybe a lime?), and that there is engine damage.
Given that there is no smoke out the back, it idles fine, and the fuel economy is "normal" is this a likely scenario?
My last car had a check engine light for a slow O2 sensor. It had 320,000 km on it. So I didn't care.
My Fiesta has 47,000 km on it.
I do care.
Can anyone help me get going on this mystery? I would like to have some peace of mind with my car.
Thanks!
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