No Start | Honda CRV
🚗 2008 Honda CRV
- Car came in with a crank-but-no-start condition.
- A customer has bought it like this from the auction, so no history is available.
- Security light was off, indicating that it’s not a security-related issue.
- First thing I always do is to check for trouble codes.
- No codes were present or stored in the Engine or Transmission ECUs.
- Timing? Air Supply? Fuel Supply? Compression? …
- Decided to test for fuel-related issues first, since it’s the quickest test to perform.
- Sprayed some starter fluid on the air filter, and the car started right up. So, it’s definitely a fuel-related issue.
- Next, I checked for a 12V and a good ground at the fuel pump connector.
- Both checked out ok.
- Note that with ignition turned on, the fuel pump is supposed to be energized only for the first 2 seconds to pressurize the fuel system for a quick start. And, of course, it should be energized continuously during cranking or with the engine running.
- Fuel pressure? Tested out within specs, 50psi.
- Fuel Injectors? Checked for a constant B+ and a pulsing ground during cranking – all good.
- Hmm… This is when my coworker noticed that when we disconnected the fuel lines for the fuel pressure testing, the fuel that we saw looked and felt weird.
- He suggested energizing the fuel pump and pouring fuel in the transparent jar to see what it will look like.
- Here is what we found:
Just for fun we also performed a styrofoam cup test.
Only the top portion of it has been starting to dissolve, indicating that only that portion has been in contact with the gasoline, not the middle or a bottom part.
That explained a lot, except how the fuel got contaminated (vandalism?).
Drained the tank. Filled it with fuel.
Car started right up, quickly burning leftover water from the fuel lines and cylinder walls.