P0621?

[randys06v6]

So I searched, and no results. Is this a first? lol

Started my car up this morning, sounded fine, didn't really let it warm up no longer than 20 seconds and left my driveway.

Pull up to the stop sign, car sounds like it's misfiring, then it sounds like it's running on 4 cylinders. Check engine light comes on and the wrench light.

Try to give it gas and it just shuts down.

Threw code p0621

Now it doesn't want to start lol. When you get it started, you can't give it has but you can barely creep it while in gear.

Thoughts?

 

[fdjizm]

This is what I could find on it...

P0621 -Generator Lamp L Control Circuit Malfunction

- Battery charge
- Faulty Generator
- Generator harness is open or shorted
- Generator circuit poor electrical connection
- Engine Control Module (ECM) controlled generator
- Faulty ECM

 

[randys06v6]

Yea I saw that on google. Just didn't see it as like a situation on here

Generator is basically new

 

[michael.konor]

Reference: http://iihs.net/fsm/?dir=40&viewfile=Charging System.pdf

Check the fuse, as well as all connections?

I remember you've had several issues in the past few months, did this one just pop up after working before?

 

[randys06v6]

Yes. All those issues were because of it jumping timing and the crank sensor going bad. This is basically a new alternator and it ran fine when I started it up. Just didn't let it warm up like I usually do

 

[michael.konor]

Warming up shouldn't be a problem. After starting my car, I'm rolling in less than 10 seconds.

 

[randys06v6]

Allllrighty. Reread codes because the wrench light turned off. Now it has 27 codes lol

Keeps repeating the previous code and p2101 and p2100

 

[G.T]

i'd suspect something a bit more sinister here :S

do you have access to a VCM/VCM-II to do a proper test?
to my knowledge this code isn't something the spanish-oak PCM would trigger on a S197 mustang

this seems more like an internal PCM issue to me

 

[fdjizm]

Car get hit by lightning?

 

[lito]

i'd suspect something a bit more sinister here :S

do you have access to a VCM/VCM-II to do a proper test?
to my knowledge this code isn't something the spanish-oak PCM would trigger on a S197 mustang

this seems more like an internal PCM issue to me

This, you changed for a BT config, check the wiring extension done if it's good, for starters, if nothing in short, melted, etc. Check fuses, start with 47.

 

[randys06v6]

Hmm ok. I extended no wiring for blow thru. The mafia was long enough to reach. So fuses it is.

So it wouldn't be a issue with the throttle body then?

 

[randys06v6]

Now that I think about it. Yesterday I went to the car wash and cleaned my whole engine bay. Air dryer to it, then drove it home. Parked it and haven't turned it on till this morning.

So maybe I shortened out that fuse?

 

[randys06v6]

Basically got the codes p0621 p2100 p2101 p2106

*Update*

Well, replaced TPS sensor. All is well lol. Codes went away and runs perfectly fine.

 

[BruceH]

Basically got the codes p0621 p2100 p2101 p2106

*Update*

Well, replaced TPS sensor. All is well lol. Codes went away and runs perfectly fine.

Good to hear. Multiple codes is a sign of the charging system going bad too.

 

[randys06v6]

Yea. I think it just had moisture in the system. I got it checked and the battery and the alternator checked out perfectly fine.