Odd behavior

[doodguy]

This post may be a little scatter brained but I need some experienced advice, possibly from a mechanic?

So I have a post about how my car doesn't feel as fast as I expected. I'm going to try to get it on the dyno next weekend.

Today, I got stuck in an insane downpour, turned on snow/wet drive mode and continued driving home. At some point, an orange wrench appeared at the bottom of my display near my speedo, and the car was driving like total crap. When I tried to change drive mode, got an error about unable to change drive mode at this time. I wasn't far from home so limped home, shut car off for 5 minutes started up and it was perfectly fine. Wrench was gone. I took car for a drive, seemed fine. On way home I was in center lane, saw lots of cars coming up in my rear view driving like jerks swerving around me and I figured meh, let me give it some gas. And BOOM the car just woke up. Was faster than it has been yet. Was driving like I would have expected all along.

What do you think of this behavior? Should I take it to dealer for service?

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[doodguy]

ps: car just hit 700mi. I have read elsewhere of stock mustangs being slow under 1000 mi and suddenly waking up. Possibly a factory de-tune to allow motor time to break in and then it releases something?

Just hypothesizing.

 

[Teezlr]

ps: car just hit 700mi. I have read elsewhere of stock mustangs being slow under 1000 mi and suddenly waking up. Possibly a factory de-tune to allow motor time to break in and then it releases something?

Just hypothesizing.

There isn't a literal "de-tune" that I'm aware of, therefore it will not be a dramatic "light switch" difference. The power difference is from the engine loosening up, less mechanical binding from tight clearance etc.

Not much help, I know

 

[Mike@KenneBell]

Based on the earlier cars that wrench light normally is a throttle body issue. The computer doesn't like what is t sees and puts the car into fail safe. If the car is completely stock then I would definitely take it back to the dealership

 

[GoBlues38]

if it was a true down pour like you say, the air intake could have gotten out of whack from all the humidity. That put things out of some range, so the computer goes limp to make sure nothing breaks.

recycle of the ignition. things are back in range. car opens up again.

 

[doodguy]

if it was a true down pour like you say, the air intake could have gotten out of whack from all the humidity. That put things out of some range, so the computer goes limp to make sure nothing breaks.

recycle of the ignition. things are back in range. car opens up again.

So you think I'm good to go? I plan to never drive in the rain but this is Florida. Goes from sunny to hurricane without warning

 

[LHousePhoto]

I would just guess that when you switched driving modes it over wrote your tune for your supercharger. I have been told that you lose driving modes with a custom tune, so back to factory tune + boost = problems?

 

[doodguy]

I would just guess that when you switched driving modes it over wrote your tune for your supercharger. I have been told that you lose driving modes with a custom tune, so back to factory tune + boost = problems?

I was in rain mode for like an hour. It wouldn't let me switch out of rain mode, I was driving on the highway all of a sudden car started bogging. I was trying to picture what was happening, went to the screen that shows A/F ETC. As I hit gas (not floored just more than halfway) it was hitting 20 A/F ratio; when I was cruising was 14, as long as I just barely pushed the gas I was able to finsh the drive cruise home. Went home shut off the car for 5 minutes, turned it on, has been perfectly fine since.

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