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I have a 2007 z06. I bought 2 cars, a wrecked 2006 and a rough roller that is the 2007. Using parts fom both cars I did a full rebuild on the 2007. I used the driver side fuel tank out of the 2006 as the 2007 was plumbed for another pump and was leaking. I didn't change the pump or anything over. With the common fix for the code being the passenger side sending unit, I changed that. The downside is it didn't fix the problem. The guage sits at half full after I clear the coden after about 30 miles it drops to zero. After checking into things, the sending units are a different part number between 06 and 07. The volts and the ohm's appear to be the same. My question is, can anyone shed some light on if the problem would be the 06 assembly being in the 07, before I drop that tank and throw some more parts at it?
Below is the DTC description…it does not see left tank fuel quantity decrease 3 gallons in 200 miles…hook up your scan tool and pull up your fuel tank voltages and compare them to the charts…I have 2006 and 2007 and both look the same…those data PIDS are usually in the EVAP section of the scan tool…the conditions for setting the DTC says left…think it should say RIGHT.
After checking into things, the sending units are a different part number between 06 and 07. The volts and the ohm's appear to be the same. My question is, can anyone shed some light on if the problem would be the 06 assembly being in the 07, before I drop that tank and throw some more parts at it?
GM reversed the resistance range starting in 2007. 2005 and 2006 cars go from 40Ω empty to 250Ω full. Later C6s (2007-2013) go from 250Ω empty to 40Ω full. The wrong sensor will read empty when full, and will report increasing fuel level as it actually goes down.
GM reversed the resistance range starting in 2007. 2005 and 2006 cars go from 40Ω empty to 250Ω full. Later C6s (2007-2013) go from 250Ω empty to 40Ω full. The wrong sensor will read empty when full, and will report increasing fuel level as it actually goes down.
So Service Info is incorrect ???….I posted values for both 06 and 07.
So Service Info is incorrect ???….I posted values for both 06 and 07.
Yes, it's incorrect. Many owners have gone through the hassle of installing new senders only to discover they got the wrong one.
I may or may not have imagined something about early-production '07s being made with '05-'06 sensors, which is why I suggest to owners of '07s that they first check the resistance range of their originals. But most (or all) '07s have the sensors whose resistance goes up as the fuel level goes down.
The OP can confirm which sensors he's got by driving around a bit and watching which way the voltages change.
It is possible to fix the reversed-sensor problem by reprogramming the fuel level table in HPTuners.
Yes, it's incorrect. Many owners have gone through the hassle of installing new senders only to discover they got the wrong one.
I may or may not have imagined something about early-production '07s being made with '05-'06 sensors, which is why I suggest to owners of '07s that they first check the resistance range of their originals. But most (or all) '07s have the sensors whose resistance goes up as the fuel level goes down.
The OP can confirm which sensors he's got by driving around a bit and watching which way the voltages change.
It is possible to fix the reversed-sensor problem by reprogramming the fuel level table in HPTuners.
I just checked my fuel tank voltages and yes Service Info is incorrect…I’m showing .706 volts will full tanks…it’s bad enough there are many mistakes in the electrical diagrams but this can lead to a misdiagnosis !!…I’ll have Alldata try to fix it.
Fuel sending unit - p2066
