Cylinder Misfire Help

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Feb 17, 2020 | 02:04 AM

#61 (permalink)

Cotyt94

Joined: Jan 2019

Posts: 68

Likes: 0

From: OR

Re: Cylinder Misfire Help

Hmm this guys problems are just like mine right now.

Feb 17, 2020 | 07:46 PM

#62 (permalink)

bc75

Joined: Nov 2019

Posts: 270

Likes: 50

From: Northeast Arkansas

Re: Cylinder Misfire Help

I was having the same problem. Cleaned mass air flow sensor and took throttle body off and my throttle body gasket was shot. Put new one on runs like new.

Feb 14, 2026 | 08:40 PM

#63 (permalink)

tlhayes580

Joined: Dec 2025

Posts: 6

Likes: 0

Re: Cylinder Misfire Help

Quote:

Originally Posted by jamesmonter2

Ok So I just purchased a new MAF sensor and CamShaft Sensor and installed, Still stumbles, no power, throttle weak and rough idle. Other parts i just replaced and rechecked multiple times. New Wires, New spark plugs, new coil packs, new injectors, checked fuel pressure and is constant 52 PSI at idle and wide open throttle, new EGR valve, new air filters, new oil change and filter, new Bosch oxygen sensors, New seal on air intake, removed throttle body cleaned, oiled and replaced with new gasket. I removed the entire exhaust no plugs in exhaust and reinstalled. Any other suggestions? I am uploading a youtube video so you can hear the car. I will load the link soon. I am running out of ideas here.

This sounds like the same issue I am having . I also replaced MAF, Crank pos sensor. Then plugs, coils, and wires. Did you ever figure out issue? Contemplating a bonfire..... help please.

Feb 15, 2026 | 09:34 AM

#64 (permalink)

8ighth Wonder

Joined: Mar 2015

Posts: 69

Likes: 1

From: Spartanburg, SC

Re: Cylinder Misfire Help

Quote:

Originally Posted by tlhayes580

This sounds like the same issue I am having . I also replaced MAF, Crank pos sensor. Then plugs, coils, and wires. Did you ever figure out issue? Contemplating a bonfire..... help please.

Fuel pressure should increase under throttle not remain the same. Keep it simple. Fuel, Air, Spark. Before I changed all of those parts, I would have verified I had each one of those. 52 psi is low for that engine and it should increase under throttle. I would have checked the regulator first. I'm not looking at changing MAF sensors unless the fuel trims tell me to.

Last edited by 8ighth Wonder; Feb 15, 2026 at 11:07 AM.

Feb 15, 2026 | 11:02 AM

#65 (permalink)

zip439

Senior Member

Joined: Jul 2010

Posts: 2,269

Likes: 462

From: SE Alabama

Re: Cylinder Misfire Help

Quote:

Originally Posted by tlhayes580

This sounds like the same issue I am having . I also replaced MAF, Crank pos sensor. Then plugs, coils, and wires. Did you ever figure out issue? Contemplating a bonfire..... help please.

Any DTC ??
Did you check the EVAP solenoid? Take the line off that runs to the back of the car; Put a small vacuum on it. If you get gas you have found your problem.

Feb 15, 2026 | 08:31 PM

#66 (permalink)

tlhayes580

Joined: Dec 2025

Posts: 6

Likes: 0

Re: Cylinder Misfire Help

Quote:

Originally Posted by tlhayes580

This sounds like the same issue I am having . I also replaced MAF, Crank pos sensor. Then plugs, coils, and wires. Did you ever figure out issue? Contemplating a bonfire..... help please.

Did you ever solve this issue? I am having the same. was getting random cylinder misfire in multiple cylinders. Changed crank and cam sensor, dd ok for a few miles. Then back, did plugs, wires and coil packs. still having same issue. Making me want to use i for target practice.

Feb 16, 2026 | 11:57 AM

#67 (permalink)

amx1397

Senior Member

Joined: Apr 2008

Posts: 6,714

Likes: 453

From: Indialantic Fl./blairsville Ga

Re: Cylinder Misfire Help

change out the front O/2 sensors even if u changed them before. make sure the connection is clean and dry
the Crossfire has a unknown o/2 sensor problem that does not show up on any diagnoses and only i know about it. LOL jim

Last edited by amx1397; Feb 16, 2026 at 12:00 PM.