Pᴀᴜʟsᴛᴇʀ2 hit the nail on the head. Turns out my injectors weren't cleaned properly, found a place and had them professionally cleaned on a machine, also replaced the fuel pressure regulator. Good as new!
I replaced the regulator about a week before cleaning the injectors again. My problem flipped entirely somewhat, when the car got cold overnight it would fire instantly the next morning consistently but the problem would return in the day.
Also turns out the place I purchased petrol had a notorious history of diluted or dirty/bad gas. Rectified everything and now my car is in great shape!
I have a Mitsubishi Galant Fortis '08 and for the longest while now I've had an issue where the car turns over for a few seconds when I turn the key and sputters when coming to life. I doubt this is a duplicate as I've used several of the posts here to help me up to this point and the issue persists.
I've been looking into this for months now and I've spent thousands of dollars (JMD) trying to fix this issue to no avail. Here's what I've tried (using some suggestions from this community).
- Replaced the solenoid on the starter
- Replaced both Camshaft Position Sensors
- Replaced the fuel filter
- Had ignition circuitry checked
- Cleaned fuel injectors
- Replaced fuel pump
- Had fuel pressure tested
- Replaced spark plugs
- Replaced battery
I had it put on several scan tools and there are no error codes at all.
This is about everything that I've found that could be related to the issue at hand. What is most peculiar however and related to #1 is that if the vehicle has been running for a bit and I turn it off and turn it on back it usually fires instantly so the issue isn't consistent.
Other details that may help, not chancing anything.
- Mileage is at 107600.
- Car initially had a knob that could be used to start it
- Key fob doesn't work (fell in water)
- Related to the last 2 above, someone suggested this is due to the fob being dead? Unlikely I think but not sure.
Related to #2 this symbol is often on my dashboard (on Japanese.SE the text says Key is missing).
More details — If I turn the key and say let go the engine cranks and usually dies, I usually have to do this twice to start it. When I hold the key however this is when it takes several seconds to start. What is also again peculiar is that whenever I've taken the car to have work done on it, it's working perfectly after up until I've left it overnight. I'm at a loss now and I have no idea what could be the issue. But I'd say the issue is near always reproducible when the car gets cold.
Here is a small video that shows the issue, you might want to turn up your audio. The delay is quite short in this however, it's usually a noticeable couple seconds longer, the initial starting sound is a lot longer and the end sound where the engine comes to life is usually weak and sputtering as if it's taking a lot of effort to turn over.
https://goo.gl/photos/Yb1uFA8SpjDETTCq9 (link is permanent, won't go away)