2001 Isuzu Rodeo Question Fuel guage inoperative

Tiny
TIM 69
  • MEMBER
  • 2001 ISUZU RODEO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 45,258 MILES
I replaced the tank sending unit and this didn't fix the problem. On the advice of a Isuzu tech I also replaced the ECM located under the hood on the driver's side.

The fuel guage reads empty and the low fuel light stays on even with a full tank.

A tech checked the sending unit and it appears good.

What could the problem be?

Thank you,
Tim
Wednesday, July 9th, 2008 AT 4:04 PM

1 Reply

Tiny
RPISCI2638
  • MEMBER
  • 2 POSTS
You'l have to get the G.M. Dealer or someone with a tech II scanner to flash the pcm to get the sending unit programmed. The sending unit sends a signal to the pcm then the pcm powers the fuel gauge.
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Thursday, August 21st, 2008 AT 6:04 PM

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