Engine Power Reduce, multiple misfires, camaro 2010, V6

[ArtB]

Good afternoon! I ask to help to understand in the circumstances. I have Camaro V6, 2010, 117000 km. Last Thursday (18.08.2016) I carried the wife for work. Everything was normal, but when I landed it and began to move slowly on the parking to departure, the engine began to vibrate, from the exhaust system smoke with a smell of gasoline went and CEL. About a year ago it already occurred, but last time after restart of the engine the problem left. This time restart of the engine didn't help, the car is started, but the engine vibrates. Then I removed the plug from the accumulator for several minutes, but it didn't help too. Then I decided to reach slowly to the parking to begin to think what to do next. On the parking I still few times tried to start the car in hope that everything will return to normal, but on the third time it wasn't started at all. 4 hours later in the same day I arrived to the parking to the car to scan codes. The car was started, but with mistakes. The scanner showed the following mistakes: P0300, P0301, P0303. In several days other scanner showed still an error of P0305 and P0089.
I know that this problem rather widespread (misfire), but here, what was farther. I changed the ignition coil with 1 for the 2nd cylinder, but nothing exchanged. Then I reached a throttle, it was rather dirty therefore it was decided to clean it. When I cleaned a throttle and delivered it into place I removed the plug from the accumulator and started the car. She earned normally, it proceeded several minutes, then I pressed the accelerator pedal approximately to 2000 turnovers, and the machine began to vibrate again and the CEL appeared.
Then in the same day I removed MAF to look in what it a condition. MAF was clean, practically without dust and without any traces of dirt, oil, etc. I delivered MAF into place and tried to start the car. Before it I removed the plug from the accumulator again. The engine was started, but mistakes lit up (three bulbs on a speedometer). Then I killed the engine, again removed the plug the accumulator, connected MAF and started the car. She earned perfectly. I don't know that it was because in fact except cleaning of a throttle I made nothing. The machine worked normally at single turnovers, then I began to press a medal of gas and everything remained normal. I even drove on the parking several minutes and still remained normal. The next two days (26.08 and 27.08) everything was good. I went in the city quite a lot and everything was as it should be, however yesterday everything repeated in accuracy. I had to evacuate the machine since it wasn't started and it isn't good to go with such vibration for the engine.
Friends, what you can prompt where it is worth paying attention? Thank you!

[ArtB]

We got to the injectors. The injector of 1 Cylinder flows and it could not be cleaned. As I told the mechanic injector in the open position and may from time to time the injector is working more or less normal, and sometimes floods and Cylinder misfire occurs.

As the exhaust manifold pipe discoloration apparently because of heating. Because of this error gave the bank 1 sensor 1. Just because of this not burned gasoline got to the catalyst and possibly also caused him harm.

I plan to replace all injectors. What do you think guys?

[JerTM]

It is possible, but unlikely that 3 injectors have failed. Do you have access to a scan tool that will show you what cylinders are misfiring while it is running?

[ArtB]

Of Course, it is show 1 and 3 cellynder, and one time 5 cellynder.

[JerTM]

have you done a compression test on cylinder 1 and 3?

[MrChrisLS3]

When you changed the ignition coil with #2, of course it still misfired, but did you look to see if the misfire followed the coil? Sure you did, but just double checking.

[ArtB]

Originally Posted by JerTM

have you done a compression test on cylinder 1 and 3?

Originally Posted by MrChrisLS3

When you changed the ignition coil with #2, of course it still misfired, but did you look to see if the misfire followed the coil? Sure you did, but just double checking.

1) Compression is fine.
2) Mechanics change the ignition coils. Sure!

I think everything happens like this: from 1 Cylinder injector from time to time due to dirt and wear takes a lot of fuel and misfire occurs. Then I try to start the car and since gasoline engine pours spark plugs starts to malfunction. Then all it descends into the catalyst.

The fact is, guys, that Russian gas is very poor quality, with a lot of impurities and dirt so the fuel system and injectors heavily polluted.

[frankwjr]

+1 on the gas...btw this doesn't have anything to do with the stretched timing chain??

[camaro2ss/rs]

i love to help anyone with any issues as much as can.. but i lose instrest very quickly when i see these long drawn out storys

[moloko]

Originally Posted by ArtB

Good afternoon! I ask to help to understand in the circumstances. I have Camaro V6, 2010, 117000 km. Last Thursday (18.08.2016) I carried the wife for work. Everything was normal, but when I landed it and began to move slowly on the parking to departure, the engine began to vibrate, from the exhaust system smoke with a smell of gasoline went and CEL. About a year ago it already occurred, but last time after restart of the engine the problem left. This time restart of the engine didn't help, the car is started, but the engine vibrates. Then I removed the plug from the accumulator for several minutes, but it didn't help too. Then I decided to reach slowly to the parking to begin to think what to do next. On the parking I still few times tried to start the car in hope that everything will return to normal, but on the third time it wasn't started at all. 4 hours later in the same day I arrived to the parking to the car to scan codes. The car was started, but with mistakes. The scanner showed the following mistakes: P0300, P0301, P0303. In several days other scanner showed still an error of P0305 and P0089.
I know that this problem rather widespread (misfire), but here, what was farther. I changed the ignition coil with 1 for the 2nd cylinder, but nothing exchanged. Then I reached a throttle, it was rather dirty therefore it was decided to clean it. When I cleaned a throttle and delivered it into place I removed the plug from the accumulator and started the car. She earned normally, it proceeded several minutes, then I pressed the accelerator pedal approximately to 2000 turnovers, and the machine began to vibrate again and the CEL appeared.
Then in the same day I removed MAF to look in what it a condition. MAF was clean, practically without dust and without any traces of dirt, oil, etc. I delivered MAF into place and tried to start the car. Before it I removed the plug from the accumulator again. The engine was started, but mistakes lit up (three bulbs on a speedometer). Then I killed the engine, again removed the plug the accumulator, connected MAF and started the car. She earned perfectly. I don't know that it was because in fact except cleaning of a throttle I made nothing. The machine worked normally at single turnovers, then I began to press a medal of gas and everything remained normal. I even drove on the parking several minutes and still remained normal. The next two days (26.08 and 27.08) everything was good. I went in the city quite a lot and everything was as it should be, however yesterday everything repeated in accuracy. I had to evacuate the machine since it wasn't started and it isn't good to go with such vibration for the engine.
Friends, what you can prompt where it is worth paying attention? Thank you!

I have the same problem with my 2011 Camaro V6 LLT, 132.000 km or 82.000 miles, since January, it started the same as yours, the engine vibrates, full of misfires, fuel smell, reduced engine power, fuel comes out of the exhausts, the catalyst is clogged with so much fuel.

One time the vehicle began to work normally but it felt heavy and consumed twice as much fuel, something was not right.

I changed the 6 injectors for some "reconditioned" eBay but when I started in cold I had misfires, then I reinstalled the old injectors.

A few days ago the problem came back, misfires and everything else, in the scanner I get P0300, P0301, P0089, P0087

I changed the high-pressure pump but it's still the same or worse. I didn't change the high pressure pipe (I'm going to buy it from eBay and change it)

I need to solve the problem to try to sell my car, I am not having a good economic time and I already spent too much for this vehicle, I have to take out a loan from the bank to try to repair it