Misfire

06TL661

MEMBER
2006 ACURA TL
14,000 MILES

Can I get help please? I had a cylinder 6 misfire code. Shakes somewhat at stop. I replaced that injector and all the spark plugs. Code still came up, so I replaced all injectors and all coils. And it seems word? I am lost. And now more cylinder misfires come up. What else could it be? Oh yeah and when I unplug cylinder 6 coil, nothing happens, the engine does not shake more. But I checked the spark on the coil and it is there. I have checked compression also and it s at 120 like the one next to it. Help please

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

I have a few thoughts. First, your compression is a bit low. The minimum spec is 135 PSI so we may need to come back to the this.

However, do you have access to a scan tool where you monitor live data? I want to see what the short term fuel trims are saying to see if the o2 sensors are saying it is rich or lean?

I then attached the lengthy testing from Acura on this code. They do a very good job covering what is left. I would suggest running through this because I don't think the compression is the issue at this point.

Basically the wiring and control module are the main issues we need to rule out at this point. Let me know if you have questions and we can go from there. Thanks

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Sunday, April 5th, 2020 AT 5:15 PM

06TL661

MEMBER
2 POSTS

Had a valve adjustment done and it doesn’t have the shake anymore, it drives good under normal acceleration but when I step In the gas, it doesn’t have power. What could this be now?

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Friday, April 10th, 2020 AT 12:44 PM

KASEKENNY

MECHANIC
18,907 POSTS

That is great. That was probably related to the lower compression.

Low power can be caused by a number of things. Here is a guide that we need to run through and check all these things first. Some are pretty basic but let's just check them to make sure or we could run in circles on this one.

https://www.2carpros.com/articles/engine-has-low-power-output

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Friday, April 10th, 2020 AT 7:36 PM