nick22

when pressing the gas sometimes my 2001 s430 has some delay. anyone have any ideas what this may be?

ibeforreal

What kind of delay, e.g., short, long, any idling problems, when engine is warming up, alreadyy warmed up, all the time?

nick22

The delay usually happens when I try to accelerate after stoping. E.g when I stop at a light and when it's time to go I press the gas and there is a delay before the car accelerates.

ibeforreal

Does the car seem as if it is going to cut off when you are stopped such as rough idling? How many miles do you have on your car? Have you ever replaced your Crankshaft Position Sensor (CPS) or your Mass Airflow Sensor (MAF)?

nick22

Yes it does seem like it's going to cut of sometimes and I do experience the rough idle. The car has 133000 miles on it. I have not replaced any of those censors.

S430LUCKDRAGON

Any check engine light ?

cybertronicify

That sounds like a MAF sensor, or your accelerator pedal is on its way out. The accelerator pedal has 2 potentiometers, for the ECU and TCU. If they get different readings, you will have a delayed acceleration.

nick22

No check engine light

ibeforreal

Before spending any money take it to your local advance auto or autozone and have them check for any codes. Even though you don't have a CEL there may be some stored codes. Anyway, they provide this service free of charge. If they come up with codes write them down and come back here for additional help/advice.

cybertronicify

If it has 133k miles, its probably due for a MAF sensor clean anyway. Get a bottle of CRC MAF cleaner and give it a good spray. Just don't touch the wire or let any dust get on the sensor. Let it completely dry before putting it back on.

VMAX7

I have an extra pedal if you need.

nick22

Where would I find the MAF sensor?

nick22

if I do need a new pedal. I will definitely let you know. How much would you sell it for?

ibeforreal

Nick, the MAF is located under the engine cover closer to the windshield. It is a round tube like thing. I would suggest that you raise your hood all the way up in the 90 degree position. That makes it a lot easier to work on.

Here is a youtube video that show what the MAF looks like.
If you replace your MAF use a Bosch. Don't go for some off name brand otherwise you'll be right back there in a few months.

gman2201

I would like to know your price also VMAX7 for the pedal
Thanks

VMAX7

$80 shipped US. I have two extra pedals.