Hello guys,

I have just made an observation on the E6X that has me wondering if this is an actual 100% full proof solution to the noisy trigger issues that plague it.

Anybody ever try to raise the "motronic" filter so that would clear up noise in the E6X's input trigger? Ive recently tried this and noticed that a value of filter at 1 merits an increese in gain, and making noise less and less apparent. Maybe even a filter value of 2 would help things along too?

Can anybody tell me if this is applicable to all E6X installs, specially with the 2ng gen CAS? If any of you have experienced noisy triggers could you try this tip so we can see if this is the cure for noise.

 

I have attempted playing with the motronic filter I found that the higher the falue the less noise, but it still did not compensate for the noise I would get 16,000 RPM spikes in my datalogs, and misfires.
I have to extremely sheild my Cas Wiring right to the firewall to get rid of any sort of noise issues with my E6X.

 

Hmm... guess its not a 100% full proof solution to the noise issue, anybody else want to offer an opinion?

What i thought was happening when i raised that filter to 1, leaving the gain at zero, it would almost not read rpms, so i raised the gain to 2 and it worked. But, i should state that this is a motronic 2 wire sensor on a 60-2 trigger wheel mounted on a Porshce engine. Dont have any rotaries to play with.

 

I've used two different X boxes on the same car. With the same settings one worked flawlessy and the other had intermittent low RPM issues that never were resolved. I've installed a couple other Xs and had no problems out of them. My "final solution" will involve a modified trigger using hall effect sensors instead of the reluctors. Like everything else that project has hit the back burner.

 

Can you tell me the serial numbers on these 2 ECUs, just curious to know what production running these are?

 

[ My "final solution" will involve a modified trigger using hall effect sensors instead of the reluctors. Like everything else that project has hit the back burner.[/QUOTE]



hall effect sensor w/ "flyin" magnets is the only way to go 4 100% accuracy,w/ my setup I will be runnin the s/4 sensor and (2) magnets.

no RF noises w/ this setup!!!

 

my E6X was one of the first three production runs.

 

The one we've had consistent trouble with is number 1825. I have one in a customer's car that has the black case that we've never had an ounce of trouble from. And I just swapped the 1825 with a unit I just received from Haltech about two weeks ago and it works flawlessly also.

 

Snap-Together Ferrite Choke Core

$5.49 @ Radio Shack

http://www.radioshack.com/product/in...tId=2103222&cp


James

 

I believe the first 100 or so units had a few issues.

A black case E6X would probably be different than a red box E6X.

Anyway, the new E6X's with the internal map sensor seem to behaving petty well. So, im hopping that we are finally arrigiving at a stable firmware/hardwar/software package. Im hopping to also do some troubleshooting of the IAC settings with a few stock cars that i did and were behaving good, then erratically, so im thinking i need to do a little more finetuning.

 

Actually a couple of them slipped. The one I had problems with was # 0749.

 

You can't just snap a choke core in and expect positive results. The ferrite chokes are frequency dependent and only works if you know where the highest insertion loss of the wire is. usually, most insertion loss occurs because of impendance mismatch causing X% of the signal reflected back to the source. They're meant for absorbing EMI by redirecting the magnetic field. It doesn't work as a filter. So unless you know the source of the noise, you won't see any difference.

 

Ya a choke not the solution.


I had problems at first with spikes.


I moved the magnets in the CAS close as i could get. You can feel the difference after doing that.

Raised my montronic filter to the highest (think it's 2).

and lowered gain to 1 or 2.

I think where I killed it is increasing the signal strenth (moving the pick ups) and decreasing the gain. The filtering might have help also but i haven't seen a spike issue since.

I also took special care on the routing of the CAS wire.

After that was done I've been quite happy with the E6X.

 

To add to this, i have seen spiking without doing anything to the CAS (moving the reluctor magnets) with gain values anywhere above 2, and filter values of zero. I havent tried to do this fix in an FC yet, but hopefully i will get a chance pretty soon. If anybody that has had spiking rpms with an X can try this, please do so, raise the filter to 1, leaving the gain at zero, see if this helps, then raise it to 2 and see what happens, if at any moment you see less and less RPMs raise the gain by 1 point and see what happens.

Never forget to reset the ECU after each change! Turning the ignition off for a few secs and back on again.

 

my E6X s/n was 0784:
and is black not the red one.
I fixed my problems but sheilding the signal from the cas to connector, then from the connector to the firewall and grounded on one end.
that fixed my problems. was frusterating to have to do but worked very well. after that I had no more problems with it.