SparkyJJO

iTrader: (11)

FWIW I would have pulled the ABS fuse during the inbetween times of testing. Just so that the ABS system couldn't screw you over. Put the fuse back in when making a change and testing.

bpittman

iTrader: (1)

I might not have used the correct term. I was referring to the calculation of tire size and gear ratio that's used to calibrate the speedo. I doubt that's it since my low trac comes and goes. It seems like if that value was off it wouldn't be so intermittent.

bpittman

iTrader: (1)

When pulling the abs fuse, does that mess with the front/rear bias? I read someplace that it defaults to 50/50 vs the desired 70/30.

mterveen

iTrader: (2)

tried pulling codes with hptuners. no luck - no codes. thought for sure there would be some since i had the abs inop lights come on. when i start my car the lights are off. today i only had to drive 5 miles before the abs inop lights popped on. it's ranged from 5 to 35 before they come on. been a few times where they didn't come on at all.

do i need a different scanner to get to the abs codes?

ccrook19

well so far i replaced one sensor and that basicly fixed one of the sensors back there.. i was watching it with our scanner at work and at about 55-65 3 of the wheels are all reading about the same.. and then the sensor i havnt replaced yet was moving around about 6mph slower/faster then the other ones.. just all over the place.. but im going to swap sensors pretty soon and double check in the next day or 2..

ccrook19

but for now i just have the fuse pulled so i can actually drive it without the abs going off when i slow down..

mterveen

iTrader: (2)

did you grind on the new sensor you replaced also? what device were you using to monitor the sensors? i wonder if hptuners has that ability anywhere?

ccrook19

yup i had to grind them to fit.. and im using a Snap-On Modis to watch the ABS data

mterveen

iTrader: (2)

thx - i'll try to run one down to take a look at the signals.

ccrook19

well i swapped sensors side to side.. and so far no light at all.. its been about 40 miles.. not sure if the new bearings were not wore in yet or what was going on... but im about 1k miles on my MWC and just swapped the sensors and everything seams good atm....

ccrook19

250 miles and no low track light yet at 65 :]

OIF1VET

iTrader: (54)

Hmmm, guess this is my next step. I bought a used moser, had some work done to it and around 70 I get the "low trac" light. No other lights and no codes. Gears went from 3:73 to 3:70. this should not be that big of a change to cause any issues, should it?

01ssreda4

iTrader: (96)

Anyone got pics of grinded sensors? Im getting this with my Strange 12 bolt. Guess I'm gonna swap sides as well.

mterveen

iTrader: (2)

even after new sensors and adjusting for the new gear ratio i still get the abs/tcs lights. its such a bummer, especially when i'm thinking of selling the car. probably have to put the old rearend back in :-( i guess the positive is that other vendor rearends seem to have the same problem. i wonder how many mwc 4 channel are out there and how many of those have abs/tcs problems. not meant to bash but more to determine if there is a correlation somewhere.

TransWS6Am

iTrader: (41)

I've got the same problem on my MWC 9", I get the abs inop and trac off lights around 60mph, I've tuned for gears and tire size.

01ssreda4

iTrader: (96)

I read this thread a week ago, and I'm glad I did because I got the same thing on my Strange 12 bolt. Apparently this is a common issue with aftermarket rear end makers. While an ABS/TCS system is composed of factory components, the rear end can make these components not work as intended. When the system functions perfectly with a stock rear, then the addition of an aftermarket rear makes these components no longer function, then it isn't the fault of the stock components. To suggest otherwise is just plain silly and ridiculous. I'm not bashing you or Strange, but let's give realistic answers to these people's problems.

While the ring not being properly seated could cause this, so could an out of round axle/flange. Thus exactly proving my point. This post shows you understand the rear and its components, making the above quoted post even further off the deep end.

OIF1VET

iTrader: (54)

I played around with mine today.. I still get the light at 70, but it doesn't seem to effect anything.. I only get "low trac".. I did some hard launches today. lit up the et streets and never saw a low trac light.. I have never got the ABS lights like others... You would think with the hides cooking the low trac light would come on... I don't understand this issue at all, I am even more confused.. But my car runs and does what it should, so I can live with a low trac light now and then.. When I have time I am going to check all the spec MWC listed and make sure they are correct.. BTW, anyone have a part number for abs/tcs sensor for 4 channel cars? I did screw up one sensor, it was loose and the end got ground down by the reluctor ring..

mterveen

iTrader: (2)

in hptuners i fooled with the abs pulses also to try to get it to work but no luck. i can drive 40-50 miles at 75 with no problem but then i can slow down to around 60 and bingo, on comes the abs inop and tcs lights. park the car and shut it off and next time i start it i'm good again for awhile!!

i got no help at hptuners when i asked there what adjusting the abs pulses actually does. it's so f'n frustrating. i've asked here a few times if there is anyone that has a 4 channel mwc that has abs working but get virtually no feedback.

NovaNut21

iTrader: (2)

jerflash

I have had this problem with me MWC fab 9 from day one and that was almost 2 years ago. I run with the ABS fuse pilled but i would like a solution. I may swap side to side and try that out first