VEMS Community Forum

Technical => Triggering => Topic started by: Samuelbrownfield on June 07, 2017, 04:14:49 PM

Title: Tooth Length Error???
Post by: Samuelbrownfield on June 07, 2017, 04:14:49 PM
Sorry for the potentially obvious question, but I can't find an answer anywhere.

What exactly does tooth length error mean?  That there is too much gap between teeth, or that the air gap to the sensor is off?

I have stock VR sensors on 944T, new VEMS install and getting those errors at >4500rpm.
Title: Re: Tooth Length Error???
Post by: Samuelbrownfield on June 12, 2017, 05:09:58 PM
Well in case any one has this same issue, installing a FAE sensor with the same gap as the Bosch and Facet sensors I had tried seems to be fixing it.
Title: Re: Tooth Length Error???
Post by: PeepPaadam on November 16, 2017, 09:33:01 AM
I will rasie this topic as I need to solve this. On several 944 Turbos (all with same "auditrigger, 132+1 VR)  customers have had tooth lenth errors. Always at around 5000-5500 rpm. Tried several different sensors, several different sensor gaps but no difference.
Before sending out I always bench test the ECU and it works fine.

Please instruct what should I provide in order to resolve this issue.
Title: Re: Tooth Length Error???
Post by: MWfire on November 16, 2017, 06:05:25 PM
Did you remove pull up resistor?
Title: Re: Tooth Length Error???
Post by: PeepPaadam on November 16, 2017, 09:34:43 PM
You mean R30?
Title: Re: Tooth Length Error???
Post by: fphil on November 17, 2017, 07:14:06 AM
One should also know the software which is behind this error
Title: Re: Tooth Length Error???
Post by: PeepPaadam on November 17, 2017, 07:50:56 AM
Firmware 1.2.32, always the same base config (I make PnP adapters for 944 Turbos) and out of 50+ pcs made 3-4 have had the issue. Others have no issues with trigger errors, clean as whistle up to rpm limiter 6700-7000 (depending on engine mods). All adapters, VEMS units etc are identical regarding config.

Should I try to remove R30? Use series resistor?
Title: Re: Tooth Length Error???
Post by: fphil on November 17, 2017, 08:49:20 AM
I meant the software lines of code, because there may me a threshold which detects that the tooth length is longer or shorter than expected. Hence there may be little depending on engines to have the error raised or not
Title: Re: Tooth Length Error???
Post by: PeepPaadam on November 17, 2017, 09:17:18 AM
Ok, how can I help/what to do to help to determine this?
Title: Re: Tooth Length Error???
Post by: fphil on November 17, 2017, 11:39:12 AM
Wiki / Vemsupport?
Title: Re: Tooth Length Error???
Post by: PeepPaadam on November 18, 2017, 04:35:13 PM
Ok, but what should I provide for it?
Title: Re: Tooth Length Error???
Post by: fphil on November 18, 2017, 08:41:57 PM
I think it is said somewhere on Vzms.hu. At you should create your own wiki page on your speudo name.
Title: Re: Tooth Length Error???
Post by: TorSEilertsen on June 21, 2018, 09:11:44 AM
Did you ever find the sollution to this issue Peep?