This has been going on for months now. It sputters when cold and at low throttle intermittently. Other times it's not sputtering but there is noticable lack of power and the engine just sounds like it's trying too hard and something is holding it back. The sound is a subtle difference but I can hear it.
Also, when it sputters I can let of the gas then pump it twice fast and it revs up and it did sputtering. Also sometimes I hear a very quiet pop under the engine, almost like mini back fire.
I've changed plugs and wires. Rotor and cap. All of which were needed.
Then it actually died on me at a stop sign and didn't want to start. It did but reluctantly. It's not throwing any codes so a couple people told me a fuel pump module. Swapped that and replaced the CPS sensor as well as a damaged fuel pump harness.
The problem persists. While everything I've done probably need it anyways if rather not keep throwing money at the problem unless it's cheap things.
Straight 6 engine.
Thanks for any advice on diagnosing!
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