Flex Fuel Gauges

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Zedstar
 

Posts: 19
Joined: Wed Feb 24, 2016 5:03 pm
Location: Melbourne , Australia

Flex Fuel Gauges

Post by Zedstar »

Have just installed Flex Fuel Board and sensor , gauges display but do not operate. ECU is 300ZX Z32

Has anyone else had this issue ?
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Matt
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Re: Flex Fuel Gauges

Post by Matt »

Is flex fuel enabled, is there ethanol in the system? They wont display a reading unless above 0% ethanol
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Zedstar
 

Posts: 19
Joined: Wed Feb 24, 2016 5:03 pm
Location: Melbourne , Australia

Re: Flex Fuel Gauges

Post by Zedstar »

It is Flex Fuel enabled with 100% e85 in tank.
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Matt
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Re: Flex Fuel Gauges

Post by Matt »

Check installation of the flex board, and that there is about 5V between black wire and green wire using a multimeter in the ECU
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Zedstar
 

Posts: 19
Joined: Wed Feb 24, 2016 5:03 pm
Location: Melbourne , Australia

Re: Flex Fuel Gauges

Post by Zedstar »

Have checked all voltages , Green OP wire 3.5v. Led flashes when sensor disconnected. It is the 8 bit ECU
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Matt
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Re: Flex Fuel Gauges

Post by Matt »

Expert mode:

Display > Consult RAM tracer

Trace address 1401 (diag input) length 01

Let me know if this is 00 or something else when there is the voltage input on the diagnostic line
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