Autosport Labs

good thinking with the sensor modification!

alexander.

for those who are - no doubt - still pondering this issue in their quiet moments, a 3 part article. i see it is actually from 2000, but i only just came across it. http://autospeed.com/cms/A_110829/article.html http://autospeed.com/cms/A_110830/article.html http://autospeed.com/cms/A_110831/article....

ok! i have just completed my second installation, this time in my jeep. the jeep already had a Hall Effect ignition, and ran quite well because of that. problem was that it is has a dual fuel setup, and mostly runs on lpg, which is generally about 40% of the price of unleaded in australia. lpg and p...

I've been thinking of providing a low cost 'external' map sensor. Perhaps this might be a good alternative to the expensive OEM modules, as you allude to? Once concern is making it weather tight for mounting in the engine bay. This kind of stuff always increases cost and complexity. In any case, fe...

i note that the MAP sensor in theMJ can be purchased from digikey in the US for USD10. in australia, the part will cost you AUD30. a delco GM type 3 pin MAP sensor found in your average american car cost about USD60. a new Denso MAP sensor for my partners 1994 toyota corolla? AUD500!! i had a second...

........ but on a more serious note, i am just putting the finishing touches on an EDIS8 installation, in which i borrowed alexander's idea of drilling holes in the harmonic damper. what a brilliant idea! many thanks

alexander
(no relation)
sydney, australia.

well! nothing like a major problem which just goes away all by itself, right? *when i retested the coil trigger signals using the ALT setting on the scope, it showed, well, nothing useful. i dont think my cheap USB scope is fast enough to draw the two input images in a way which allows comparision o...

it does have an ALT setting, as it happens. i thought i had selected that at one point to see if it made any difference and thought not, but quite possibly i have not been thorough enough there. i will have another look at all that tomorrow.

thanks for the heads-up!

alexander.

to take the image of the VR waveform i have unplugged the harness at the VR sensor and attached the scope wires, so the fact that the important part of it is in reverse is simply that i had the probes on 'backwards'. the VR is however connected into the harness the right way - one way around the EDI...

for the record, a couple more images.. firstly, the VR output waveform, looking exactly as it should; and secondly, the output of just one of the coil trigger wires, showing a much cleaner waveform than the earlier images. that is with only one probe attached ie not trying to measure both trigger si...

ok well, i have now put the probes on again and get a different pattern now. of course. the odd +ve swing from one of the coil triggers is gone, but it still shows A & D, and B & C, triggering at the same time. which confirms the fact that i could see both the letters "A" and "...

removed some irrelevant and misleading images and text

as a general point, the actual EDIS unit itself will fire ABABABAB etc for EDIS4, ABCABCABC..etc for EDIS6, and ABCDABCDABCD etc for EDIS8. as the coil packs are just a collection of identical individual coils, each of which services two cylinders, it makes no difference which coil you connect which...

this is the harmonic balancer (from an AMC 360 V8 ), drilled to create a trigger wheel. as noted above, this idea is from another contributor on this, list several months ago. without looking up just now whom it was, i will just say a big thanks to him for a really clever idea! as the photos indicat...

hi brent. no progress, but i have not had time to have another look at it. the crank sensor is aligned properly - the EDIS is firing very close to 10deg btdc. the sensor is no more than 1 mm away from the trigger, so that doesnt seem to be an issue. as for the flipping between the two different timi...