Popping and stumbling after exhaust and cai
02-08-2019, 05:13 PM
#22
On The Tree
Thread Starter
Originally Posted by wssix99
Sounds like an open loop/closed loop problem, which is hard to know what is going on if one doesn't know what your tune does.
02-09-2019, 07:23 AM
#23
This will throw off and really screw with your oxygen sensors. That leads to mixture problems, which is probably what caused your popping. That probably lead to high heat in the exhaust, which could have baked your sensors.
Car's burn gas so if anything is there other than the expected air/fuel mix, then things aren't going to work well. You have a successful test, which seems to show your EGR plate isn't blocked - so you should be set.
Car's burn gas so if anything is there other than the expected air/fuel mix, then things aren't going to work well. You have a successful test, which seems to show your EGR plate isn't blocked - so you should be set.
02-09-2019, 08:07 AM
#24
On The Tree
Thread Starter
Okay guys think I found the MAIN issue here. Guess the cai created more vacuum than the stock air lid and made that brittle rusty egr pipe crumble. You can see the broken piece at the bottom of the pipe in the pic.
Last edited by BamaBird22; 02-09-2019 at 08:53 PM.
02-09-2019, 10:11 PM
#25
In the long run, I would bet that you'd be better off going back to the old intake and a paper air filter. Your MAF will be happier and give you more power and you'll have a lot less grief across the board.
02-09-2019, 10:17 PM
#26
On The Tree
Thread Starter
Originally Posted by wssix99
I think you are giving the new intake more credit than it deserves. A rusty pipe is a rusty pipe...
In the long run, I would bet that you'd be better off going back to the old intake and a paper air filter. Your MAF will be happier and give you more power and you'll have a lot less grief across the board.
In the long run, I would bet that you'd be better off going back to the old intake and a paper air filter. Your MAF will be happier and give you more power and you'll have a lot less grief across the board.
02-10-2019, 07:31 AM
#27
An open EGR line can trigger O2 codes, (if it's the return line) just like a pre-sensor exhaust leak.
The O2 sensors are going to report excess Oxygen in the exhaust, beyond what the computer expects to be there. An open EGR line, allowing fresh air to enter the combustion chamber (outside of the PCM's control) will cause this condition.
I assume your O2 codes are for lean conditions?
The O2 sensors are going to report excess Oxygen in the exhaust, beyond what the computer expects to be there. An open EGR line, allowing fresh air to enter the combustion chamber (outside of the PCM's control) will cause this condition.
I assume your O2 codes are for lean conditions?
02-10-2019, 12:34 PM
#28
On The Tree
Thread Starter
Originally Posted by wssix99
An open EGR line can trigger O2 codes, (if it's the return line) just like a pre-sensor exhaust leak.
The O2 sensors are going to report excess Oxygen in the exhaust, beyond what the computer expects to be there. An open EGR line, allowing fresh air to enter the combustion chamber (outside of the PCM's control) will cause this condition.
I assume your O2 codes are for lean conditions?
The O2 sensors are going to report excess Oxygen in the exhaust, beyond what the computer expects to be there. An open EGR line, allowing fresh air to enter the combustion chamber (outside of the PCM's control) will cause this condition.
I assume your O2 codes are for lean conditions?
02-10-2019, 04:56 PM
#29
On The Tree
Thread Starter
Okay I guess that wasn't the problem. Bout new 02s and put those in also. Still having the same issue. I also have a thin white smoke coming from tail pipe and water dripping. And yes it's just water. Strong gas smell also. And still popping every now and again
02-10-2019, 10:03 PM
#32
On The Tree
Thread Starter
Originally Posted by wssix99
Are you going to make everyone look these up?Your O2 sensors are probably fine - just telling you that there is bad chemistry. The bad chemistry can be cause by the open EGR.
02-11-2019, 07:33 AM
#33
If your car was throwing emission codes before you started doing modifications, then you did yourself a disservice by not fixing that problem first. As the header leak shows, these types of problems become exponentially harder to solve when more variables get layered on top.
Putting as much back to the way it was (like the air intake) may be helpful.
Like I've been saying. I've already said the oxygen sensor codes you are seeing are probably due to your open EGR pipe, but I will say it again...
It might be helpful for you to understand what is going on by reading up on the sensors. Could low voltage mean the sensor is bad or you have bad wiring? Yes. But it can also mean that you just have a ton of oxygen in the system. Lower voltages mean high concentrations of oxygen are present. (Due to excess oxygen being introduced to the system through an exhaust pipe leak, ERG leak, intake leak, etc. or bad combustion.)
http://www.autotap.com/techlibrary/u...en_sensors.asp
To solve the code problems, you'll need to resolve all leaks, fix all intakes, and have a proper EGR system. You can then clear the codes and see where you are. (You might still have an electrical problem - but even if you do; all of these things will still continue to cause problems.)
Putting as much back to the way it was (like the air intake) may be helpful.
It might be helpful for you to understand what is going on by reading up on the sensors. Could low voltage mean the sensor is bad or you have bad wiring? Yes. But it can also mean that you just have a ton of oxygen in the system. Lower voltages mean high concentrations of oxygen are present. (Due to excess oxygen being introduced to the system through an exhaust pipe leak, ERG leak, intake leak, etc. or bad combustion.)
http://www.autotap.com/techlibrary/u...en_sensors.asp
To solve the code problems, you'll need to resolve all leaks, fix all intakes, and have a proper EGR system. You can then clear the codes and see where you are. (You might still have an electrical problem - but even if you do; all of these things will still continue to cause problems.)