VT idles but conks out with any throttle

[Samwow]

Hi guys,

The other day the VT stopped responding to throttle. And then conked.

It starts, idles, roughly at low revs, but If I try and give it any throttle or put it in gear and move, engine conks out.

So far I have done the following:

MAF Swapped
CAS Replaced
TPS & IAC replaced
Test for Vacuum leaks by spraying 'Start ya Bastard' around throttle and plenum - no leaks
DFI module and Coils swapped for known working ones.
Alternator Swapped
Spark Plugs Cleaned and reseated

I can hear the fuel pump prime at key on position.

I was thinking of replacing the fuel pump, but since it starts and idles and the fuel pump primes, I'm a bit hesitant.

I was also thinking of replacing fuel rail and injectors.

It's on the side of the road and becoming a bit of a hassle!

Thanks for any suggestions you could help me with....

Samwow!

 

[devilly]

check egr for leaks, biggest plastic tube from air box to throttle for a crack. my thoughts are spun a vacuum leak underneath throttle body hose. is the engine light on ? any codes when bridging 5 & 6 ?

 

[Samwow]

I

check egr for leaks, biggest plastic tube from air box to throttle for a crack. my thoughts are spun a vacuum leak underneath throttle body hose. is the engine light on ? any codes when bridging 5 & 6 ?

That hose under throttle body is fine, all attached.

EGR seems fine, and it's been blanked off by a plate and memcal mod.

Not sure what bridging 5 & 6 is?

No engine light when idling. (Pretty rough idle)

 

[Tree cutter]

How old is the fuel filter? It might be worth trying a new filter

 

[greenacc]

Bridging pins 5&6 with a wire or paper clip will display any fault codes on the dash. Google it and try it if you can.

 

[greenacc]

I'd get it towed before it sits there too long as vultures will start stripping it.
Blocked air filter or Blocked exhaust maybe?

 

[delcowizzid]

Blocked cat

 

[uniacidz]

Here are five signs that something may be wrong with your catalytic converter:

• Your vehicle's fuel efficiency suddenly drops.
• Your vehicle doesn't accelerate when you step on the gas pedal.
• Your vehicle may refuse to start.
• Your vehicle fails an emissions test.
• The MIL or Check Engine light comes on.