Engine shuts down anytime gas pedal is floored corvette is a 1982 crossfire.if you ease up on pedal engine then gains rpm as normal.idle is fine .seems as if when vacuum drops that is what causes it to...
Possible causes, and in an order of where to check first:
1.Fuel filter - Located along the Right frame rail, close to passenger door area.
2.Fuel pump - Located inside fuel tank.
[Electric fuel pump. Pressure should read between 9-13 PSI.
The Cross-Fire Injection unit, is in reality,
Two- Throttle Body Injection units. TBI. ]
3.Fuel strainer for fuel pump. ('Fuel sock')
Located in fuel tank, attached to fuel pump.
The fine mesh of this sock can become restricted over time, by 'sludge' that has built up in the bottom of the fuel tank.
'Sludge'. Dirt mixed with moisture that builds up inside a fuel tank. Additives for gasoline that also add to the sludge)
4.Air cleaner element. (Added, because many times this is overlooked by the owner, and can cause bogging down when accelerating hard, if severely dirty. Added as fourth in the list instead of First, but may be the First area to look)
5..Cross-Fire Injection System, (Twin Throttle Body Injection System)
This injection system is controlled by an ECM, (Engine Control Module)
This same ECM also controls the emissions system. (CCC. Close Coupled Catalysts)
It is for this reason, of interaction of the injection, emissions, and ignition systems, that only a qualified, professional technician can diagnose problems with the unit.
Computerized diagnostic equipment, along with the knowledge, and training required, is needed.
Sep 18, 2009 |
Chevrolet Corvette Cars & Trucks