Throttle Response

[Ahgrafx]

Seems like when I hit the gas its slow return to idle. Could this be a week spring somewhere? I'm new to fuel injection.

Sent from my HD1905 using Tapatalk

 

[ttocs]

it could be a bunch of stuff. What has all been done to the car and what have you already done/checked?

 

[Ahgrafx]

it could be a bunch of stuff. What has all been done to the car and what have you already done/checked?

I just bought the car, only things I know is it has a chip with a little dial on it. If I accelerate and shift fast it's almost as though I haven't let off the gas so it's a little scary. I just noticed it tonight. The chip has 3 settings stock, performance and race which is 93octane. Ecs chip I believe it's called bama tuning I think

Sent from my HD1905 using Tapatalk

 

[Ahgrafx]

Been doing a lot of reading and a lot of people are saying to change the ECT and ACT sensor.

Sent from my HD1905 using Tapatalk

 

[evilcw311]

It’s either a vacuum leak or bad IAC valve. I’ve had the same issue before and it was my iac


Sent from my iPhone using Tapatalk

 

[evilcw311]

Not sure where you read the other stuff but vacuum and iac are very common on our mustangs for this.


Sent from my iPhone using Tapatalk

 

[ttocs]

I just bought the car, only things I know is it has a chip with a little dial on it. If I accelerate and shift fast it's almost as though I haven't let off the gas so it's a little scary. I just noticed it tonight. The chip has 3 settings stock, performance and race which is 93octane. Ecs chip I believe it's called bama tuning I think

Sent from my HD1905 using Tapatalk

So there isn't any parts under the hood that has been swapped other than a cold air intake more than likely? Bama chips have been known to suck, I know because I had one and it was horrible no matter what setting it was on. I would start simple, check for vac leaks but before you get too far into I would address that tune by either a dyno session or a new tune from a respectable tuner.

 

[Ahgrafx]

I replaced the iac yesterday, left the battery disconnected while I replaced but it still surged upon startup for about 30 seconds. I don't have the money for a Dyno run right now, as I'm out of work.

Sent from my HD1905 using Tapatalk

 

[01yellercobra]

If the MAF and injectors are stock I'd remove the chip. Chances are it's not really helping anyway.

How slow is slow? I don't know how the pushrod are, but the mod motors are kinda slow to return to idle. Has to do with emissions I believe.

 

[Ahgrafx]

If the MAF and injectors are stock I'd remove the chip. Chances are it's not really helping anyway.

How slow is slow? I don't know how the pushrod are, but the mod motors are kinda slow to return to idle. Has to do with emissions I believe.

I'm kind of getting used to it now it must not be that bad

Sent from my HD1905 using Tapatalk