Hey guys, I got a car off somebody to better take care of it but basically when we tried tuning it the ecu wouldn’t read afr’s and I searched how to figure out the issue and it turned out to be the previous owner was using a 4.9 when the classic can only use 4.2 but after buying the 4.2 connector I forgot that it won’t plug into where the 4.9 would , is there a adapter I can buy?
This is not possible they had different pin outs and also different readings, so you need a 4.2 LSU otherwise it will not work and you will also need to setup resistor in classic.
Everything was set up but the plug for the sensor won’t fit on the 4.2 so my only guess was that they wired in the wrong one
lsu4.2 and lsu4.9 plug size is different aswell as the pinout.
get the right plug and repin and follow instructions from the installation manual to set it up.https://drive.google.com/file/d/1q73rzqYHdcp6Q7azTxr_CmBf4hhG5-pg/view