boost issue of sort

[killerrudy]

I was out enjoying my truck the other day and noticed that if I floor it, as far as I can get the pedal down, the truck feels kinda sluggish and only boosts .75 bar. Now if I let up on the pedal an inch or so the truck will go to 1 bar and feels much quicker. Now, what on earth could cause something like that?

 

[ed hess]

Re: boost issue of sort

I was out enjoying my truck the other day and noticed that if I floor it, as far as I can get the pedal down, the truck feels kinda sluggish and only boosts .75 bar. Now if I let up on the pedal an inch or so the truck will go to 1 bar and feels much quicker. Now, what on earth could cause something like that?

possilby the tps sensor,
tps = throttle position sensor on the side of the throttlebody
to check it put an analog voltmeter on it, (the old style with a needle)

as you open the throttle the needle should move with it.

if the tps is bad you will find a dead spot in it.


ed

 

[Suny]

Re: boost issue of sort

I was out enjoying my truck the other day and noticed that if I floor it, as far as I can get the pedal down, the truck feels kinda sluggish and only boosts .75 bar. Now if I let up on the pedal an inch or so the truck will go to 1 bar and feels much quicker. Now, what on earth could cause something like that?

im haveing something similar to this. my truck feels like its missing or not getting enough fuel. whats is the fuel line pressure supposed to be at? a local garage had an aftermarket manuel and said the fuel pressure should be at 35-45. this seems a little low for a turbo engine. is that pressure right?

i just need a pressure tester to find out what myine is at underload and acceleration. what kind of fuel pumps are you guys with stock engines running? part number if you can find it please.

thanks.