. i once had a starting problem associated with my 85's fuel pump, pressure, starting sequence and went thru this as part of the diagnostics. from my old man memory, i remember checking the signal at the fuel pump relay connector while cranking the engine. BTW, what year corvette and ...
FUEL-16, Troubleshooting Fuel Supply ProblemsFuel Pump / DME Relay Primary Coil ActivationFuel Pump Fuse
For a 240 Turbo or non-turbo with K-Jet injection, the factory STRIBEL fuel pump relay requires an ignition pulse signal to turn "ON." This relay is known to become a bit finicky about accepting the tach signal, especially if you have done any changes to the ignition, such as adding ...
The fuel system on the 6.5L GM diesel is simple and straight forward. A low pressure fuel pump (lift pump) mounted on the driver side framerail draws fuel from the tank, pushes it through the fuel filter housing, and then into the injection pump. The injection pump, which may be entire...
TROUBLESHOOTING QUESTION ON A 7 PIN AFM byVWMAN» Thu Aug 01, 2024 4:45 pm 0Replies 921Views Last postbyVWMAN Thu Aug 01, 2024 4:45 pm EGR: To block or not to block? That is the question. bysatchmo» Fri Jun 01, 2012 6:24 pm ...
Bad fuel pump Engine vacuum leak (including EGR valve failure) Faulty oxygen sensor Mass air flow (MAF) or Manifold Air Pressure (MAP) sensor failure What are some P02A6 troubleshooting steps? If there are MAF or MAP related codes present, diagnose and repair those before attempting to diagnos...
On many vehicles, a no-start can occur if the oil pressure switch is bad. The oil pressure switch is wired into the fuel pump relay circuit to cut voltage if oil pressure is lost. This is to prevent fuel from spraying out of a ruptured fuel line in the event of an accident. Some ...
Troubleshooting flowchart for the starter, spark failure and the fuel pump When you turn the key, does the starter crank and turn over the engine? It's possible that you left your automatic transmission in gear, and the neutral safety switch won't let you send power the starter to lurch...
So I’m only getting 20psi of fuel pressure so I replaced the filter/regulator with no change, I then assumed a weak fuel pump and removed it. My question is what is the weird thing in the picture that the pressure line is T’d into. This is the weirdest fuel system I’ve ever ...
Another option is to momentarily start the engine, then pull the fuel pump fuse or relay and let the engine run for a few seconds until it stalls from a lack of fuel. Always wear eye protection and wrap a rag around the fuel line connection to deflect any residual pressure and fuel spra...