GenIV then, that's the easier way from a tune perspective. I can't say where the sensor is myself. Stock tunes are boost ready on a GenIV, just add a MAP sensor.
Flex fuel sensor - LS swap
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GenIV then, that's the easier way from a tune perspective. I can't say where the sensor is myself. Stock tunes are boost ready on a GenIV, just add a MAP sensor.
Generally, they are on the drivers side by the trans crossmember and tucked up in the crossmember in the same area as the abs module to keep road debris off of it. That's at least been then location on the tahoes and suburbans i've fixed.
I thought Gen4 LS didn't use a physical sensor, it just looks at the O2's and adds fuel until the AFR target is met.
TBSS was GenIV, it was the first example of a retrofit that came to mind.
A 14 box van won't have a flex sensor. It just calculates it.
The retrofit kits usually use flex sensors off impalas or older 02-06 pickups.
The retrofit kits usually use flex sensors off impalas or older 02-06 pickups.
Adding a flex fuel sensor? - CorvetteForum - Chevrolet Corvette Forum Discussion
C4 Tech/Performance - Adding a flex fuel sensor? - For many reasons (namely a Procharger), I want to be able to run E85 on my 1990. To make things easier, I'm going to add a flex fuel sensor like this one (I will be running a standalone ECU.) From what I read, you want to mount this as close to...
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There must be a year split in the GenIV stuff then, because using a GenIII sensor on a GenIV PCM makes no sense to me.
There's an input for the ecm to read flex, and the table in the ecm, just not the sensor or wire.
I'm not home yet, but there was a wire from the ecm that was for the flex fuel sensor. I will check the harness again to see where the wire went to.
I checked under the donor and didn't see anything. Stopped at the dealership, let them run the vin and tell me. They said there wasn't one.
Obviously I need to double check all this, but I'm pretty sure there isn't a sensor there. I'll have my harness hopefully back out this weekend and will chase the wire to see what it went to.
If you are right then that may explain why there is no sensor.
Ok, just want to re-visit this for some closure.
There is a wire coming out of the ecm. It is cut from a connector that runs elsewhere in the donor vehicle. Looked quick again for a sensor and am not still seeing one. I'm not super concerned with it right now. Just thought if it was there and free on the donor, I would add it in when I do the fuel lines.
The donor vehicle is not going anywhere anytime soon, so may re-visit this at a later point, probably won't though.
There is a wire coming out of the ecm. It is cut from a connector that runs elsewhere in the donor vehicle. Looked quick again for a sensor and am not still seeing one. I'm not super concerned with it right now. Just thought if it was there and free on the donor, I would add it in when I do the fuel lines.
The donor vehicle is not going anywhere anytime soon, so may re-visit this at a later point, probably won't though.
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