Zoolander

iTrader: (1)

When I plug in the Boomslang harness it faults the MAF and gives me a P0100 error. Has anybody experienced a similar issue? ‎

badblackgs

iTrader: (1)

would I be out of line if I asked why you require a boomslang harness to go with a apexi air fuel controller? the apexi only requires a few wires to hook up for altering the mass air flow signal. I have experience with boomslang and I can tell you that I had to rewire mine when I got it initially new from boomslang. You should acquire a factory wiring diagram with pin out views than confirm your boomslang is wired correctly.

Zoolander

iTrader: (1)

It came with the Apexi and I'd prefer to use it than tap my harness.

What issues did you have? It looks as though the issue on mine is a lack of factory wire for the MAF signal. Only the yellow wire for the Apexi is in that pin.

badblackgs

iTrader: (1)

the boomslang harness I bought had missing cam sensor wires and something else I can't recall. It was over a year ago.

GSJake

iTrader: (21)

Are you POSITIVE that this harness is for the 4.3 and not the 4.0?
Did you get it from here?

Zoolander

iTrader: (1)

Far as I know it is. Spoke with Ruston this morning and he said the MAF code is being thrown because the AF ratio needs tuned on the Neo itself.

Rock-a-Lex

iTrader: (4)

The BS harness should be a plug n play for just an AF controller. I had that setup on my GS400 a while back with my Neo. No issues. Just ensure you did the setup/initialization for your specific car before you start the car. It's in the instructions.

Jackie939

If you Apexi has the proper initial set up, then

the Harness is not set to the right pins. There is threads on here showing the correct pins#.

an un-tuned car will show lean or rich code..most likely rich... but not a MAF Malfunction code.

GS400V8

iTrader: (4)

Were all of these things done?

1. Initialize
2. Select 4 cylinder (yes, in the manual it says to do this for Toyota V8s)
3. Set throttle calibration (setting voltages by depressing and pressing gas pedal)
4. Select HOT WIRE type sensor, number 13 (the number 13 is very important, this is the type of MAF voltage specs for our cars)

Here is a diagram below that was successfully used by member GILLEXUS with his 2001 GS430. Seven connection areas, just like on my Boomslang/Apexi so a total of eight wires coming out of the harness when you account for the two wires that intercept the MAF.

Zoolander

iTrader: (1)

It was the hot wire sensor, thank you!

sakataj

iTrader: (182)

i miss Ron,he was a good member and a good dude, used to talk to him a lot and i bought a lot of his parts..... RIP