Failure to start

BRIAN TURNER2

MEMBER
2000 RENAULT SCENIC
1.6L
4 CYL
FWD
MANUAL
94,000 MILES

Engine turns over no problem, but no current to coils and no current to fuel pump. The fuel gauge is functioning, same relay used on both. Relay changed, but problem still exists Can I bypass it to make pump work? I wonder if these two things are related in that they are both needed for engine starting?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
43,057 POSTS

Hey BRIAN,

I would not bypass the relay, please check for voltage at the relay to see if it is trigger problem or a power source problem, I believe if the crankshaft angle sensor is bad the computer will not turn the system on because it does not see engine rotation.

Here is a guide on how to use a test light and how to replace a cks

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Let me know what you find.

Best, Ken