ABS/ ASR - Another one with problems!

[Kevgta]

Are the back and front sensor plugs easy enough to get to?.

 

[CatmanV2]

Thank you guys, makes sense, when you say hall effect?
Cheers

Works using magnets.

C

 

[Zep]

Thank you guys, makes sense, when you say hall effect?
Cheers

Invented by Edwin Hall, the generation of a potential difference (voltage) by a perpendicular magnetic field. Its how these sensor work.

 

[Zep]

Are the back and front sensor plugs easy enough to get to?.

I doubt it, they rarely are.

 

[Kevgta]

Thanks, are they active or passive sensors?.
If active I guess ignition must be on when testing?
Cheers

 

[CatmanV2]

Thanks, are they active or passive sensors?.
If active I guess ignition must be on when testing?
Cheers

Nope. From memory Hall effects should be passive.

C

 

[RodTungsten]

Need juice to get the effect:

 

[CatmanV2]

Need juice to get the effect:
View attachment 117487

My apologies, then!

C

 

[RodTungsten]

It might be possible to get a signal from a passive coil being passed by the lugs on the ring but it would be very small - bit like a tiny, tiny dynamo.

 

[Kevgta]

Thanks, I've been testing front sensors, nothing showing with ignition on, but with ignition off one sides showing 1700 olm and other around 800 olm so could have found problem maybe??
Cheers

 

[Zep]

I’d check the rear ones too. The odd one out will be the problem.

 

[Kevgta]

Will do zep, is the connector acessable from the boot?
Cheers

 

[Kevgta]

Think will check today, does anyone know where in the car the rear sensor connects? Is it in the boot?
Cheers

 

[CatmanV2]

Think will check today, does anyone know where in the car the rear sensor connects? Is it in the boot?
Cheers

I have a really vague memory that someone said it was under the rear seat.

This may help, or it may not

https://www.eurospares.co.uk/Maserati/3200/3200_GT_GTA_Assetto_Corsa/PartDiagrams/126/Electrical:_Airbag_&_ABS_Harness

C

 

[davy83]

i checked today and the connectors are inside the car not in the wheel arch area. So under the seats at the back sounds right, and somewhere low down in the engine bay at the front.

 

[Kevgta]

Does anyone know is there any replacement part numbers for abs sensor there a bosch part, becoming thin on the ground?
Cheers

 

[dickygrace]

Does anyone know is there any replacement part numbers for abs sensor there a bosch part, becoming thin on the ground?
Cheers

They’re made by SKF and are Maserati part no. 197118, no viable alternatives exist. There are a lot of fakes on alibaba, aliexpress, eBay etc. Don’t be tempted, folk have tried and they’re failing after a week or 2.

Here’s the OEM part:

https://www.scuderiacarparts.com/part/201721/maserati/197118/wheel-bearing-assembly.html

 

[Black Mazerati]

They’re made by SKF and are Maserati part no. 197118, no viable alternatives exist. There are a lot of fakes on alibaba, aliexpress, eBay etc. Don’t be tempted, folk have tried and they’re failing after a week or 2.

Here’s the OEM part:

https://www.scuderiacarparts.com/part/201721/maserati/197118/wheel-bearing-assembly.html

Dang! I almost bought a set of hubs to put on the shelf back when the Pound was down. I could have bought them for around $350.00 less each. I bought a clutch, flywheel, throw out bearing, clutch position sensor, and rear main seal delivered to the states for $2500.00!

 

[Zep]

Looking at the pictures of the sensor, they look a lot like a 916 Alfa sensor. But it would take a bit of work to find out if it was the same.

Fronts are



Rear (both) are 383800105

 

[Kevgta]

Hi,
Just to confirm the rear sensors are located behind seats, only need to remove seat base. Also they can be olm tested with a multimeter with ignition off