408ws6ta

I got this car around 10 months ago with spun bearings and a blown M6. It has a 408 that has since been rebuilt.

I got the car back 4 days ago and found something strange... Maybe the car has a TB from the wrong year with the different throttle cable cam?


When I push the pedal down the TPS only reads 47%. When I open the throttle at the TB it goes to 100%.

I looked under the pedal and there is a plastic throttle stop. Is this normal?

How can I tell if it has the wrong year throttle cable cam on the TB?
The TB has 23950 on it.

jimmyblue

iTrader: (11)

I haven't seen that plastic piece (maybe for lack of
looking) but I have seen cars where pedal pull could
only make 80% TPS. Bending the pedal arm out was
all it took (bench vise & piece of pipe).

2xLS1

iTrader: (25)

It looks like it might be a 98-99 TB on a 00 car. They had smaller cams on the throttle body and could be a problem. Hard to tell for sure from than angle. A direct side shot of the TB cam would be better. Since it just has one cable, it may be a ASR (traction control) equipped car unless it is not and someone has removed the separate cruise control cable used on non ASR cars. If the pedal cable runs to a servo behind the battery and another cable from the servo to the TB, there should be an adjuster in one of the cables to take out any slack which will keep it from going 100%.

fastsspr

iTrader: (49)

Is the first time i see that in the gas pedal.

Paul Bell

iTrader: (9)

You got the car back from whom? A shop that did the engine install?

Sometimes when shops do work, they limit the car's performance to reduce warranty claims against their work. Many transmission shops make it so you cant place an automatic transmission into first gear.

I just checked my car. It does NOT have this thing.

Yank it out and re-check your TPS opening percentage.

I'd say your throttle body and accelerator cable are the correct ones.

2xLS1

iTrader: (25)

Pic of the pedal on my 2000 SS with ASR.

firemech21

iTrader: (9)

I havent seen that peice below the pedal on either of my T/As. My first had traction control, but didnt have that piece and my current car doesnt have either.

2xLS1

iTrader: (25)

Were they 2000s like the OP's car and like mine that I took the pic of?

Paul Bell

iTrader: (9)

Well there goes my theory. I've just pored through the parts catalog. The later V6 cars has something called a "pedal stop" but there's no illustration of it and the part number is un-readable.

I'd still take it out.

Z28/2002

iTrader: (27)

They all have the plastic piece. My 2000 Z28 and '02 CETA has it and my old '02 Z28 had it

Paul Bell

iTrader: (9)

Really?

waterbug1999

iTrader: (3)

if u follow the cable back to where it has a bulge looking thing and see if it came loose.. When i had my N20 hooked up it stooped spraying, found out it wasnt hitting WOT (100% TPS) anymore. Well, the clip came loose and the cable walked out some. So, just pushed the cable back tight and snapped it back on.

O2Form

It has that plastic piece if you have traction control, no traction control no plastic stop.

MX6.0

Please tell me their idea of traction control isn't limiting the pedal travel to 50%. lol

imma_stocker

iTrader: (19)

Haha my pedal goes 50% down for 100% WOT

Pull out for your pedal stop and send it my way.