Engine starts and shuts off

Any help would be appreciated. The car has 160K+ miles and was having some misfires on cold start. So I decided to try cleaning both EGR Cooler and Intake Manifold per YouTubers. I also replaced PVC valve per recommendation. After completing the cleaning and reinstallation, the car shuts down after engine starts. I also cleaned the fuel injectors with this because I was afraid I might have smeared something on them when I was cleaning the manifold. Nothing seems to resolve the problem. I repeated manifold and EGR cooler removal and reinstall a few times and to check for missing hose and electrical connections. They all are connected. I am getting P300, P0301, P0302, P3190. The engine starts and stays on for various durations….immediately to almost up to a 50+ seconds. Thanks.

 

BTW, I got P0102 & P0113 initially. I replaced the MAS sensor. The error codes disappeared but it did not help the stalling. It also came back on and off. It is now off.

 

Thanks for the advice.

Thanks for the advice. I repeated the dismantling and reinstalling a number of times. Everything seems to to be in the right place…hoses and cables/connectors.

Thanks for the advice. I do not smell gas coming from the tailpipe.

 

I also replaced all the spark plugs and no help either. The old plugs looked very poor. The iridium tips were burned to almost nothing on all of them and created a huge spark gap. Unfortunately, the plug replacements did not resolve the issue. I checked the ignition coils today. The resistance between pin 1 and 4 were open on all. According to what I read, They should be ~200k ohm. Mines are open. The resistance between pin 1 and 2 was 369 ohm. I believe that is ok. Are the coil bad? Could they all failed at the same time? Thanks.

 

Thanks for the advice. The plugs were replaced @100K with NGK purchased at Amazon. The original factory plugs were in excellent shape even at 100K when I replaced them. I thought this car was very tender with the plugs. I had a lot of luck with NGK products in the past that’s why I purchased their plugs as replacements. Could they be counterfeit plugs? I guess it would be possible even with Amazon purchases. I will see how to do coil test with one person……crank the engine while grounding the plug. Thanks.

 

Sorry…. I did not answer your question. It was a brand new purchase from Toyota dealer. I replaced the plugs with NGK Brand myself @100K. The original looked extremely clean and good when I took them out. That’s why I did not think I needed to replace them after 60K miles.

 

Thanks search continues.

 

Noted and thanks.

 

I finally had take problem fixed. It was two bad ignition coils that caused the random misfired codes. The first set of replacement parts from Amazon did not work (although it was “compatible/fit”) my car. I later purchased a set of Genuine OEM Toyota coils and it solved the problem. Lesson learned is “stay with genuine OEM parts” especially with critical components.

I wanted to thank the members who charmed-in on my post and provided moral support to my issue. Thank you very much.

I now will venture out adding a Blind Spot detection to it for extra safety feature. Any suggestions would be appreciated.

Cheers.