Timing errors with AEM EMS-4 (crank sensor)
03-29-2013, 07:09 PM
#23
Is this the circuit you made? I made some modifications to his picture based on what I understood from your previous post.
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03-29-2013, 08:52 PM
#24
That's it: I did it for the cam and the crank.
I didn't have too much time to putz around with the IC since I was trying to make a dyno appointment; however, I found this to work. The guys at AEM were saying to use a pull down resistor, and if that didn't work, try a low-pass. They suggested a max of .01uF, which kind of set me on the wrong path seeing how I was getting RC values of ~.5ms.
I didn't have too much time to putz around with the IC since I was trying to make a dyno appointment; however, I found this to work. The guys at AEM were saying to use a pull down resistor, and if that didn't work, try a low-pass. They suggested a max of .01uF, which kind of set me on the wrong path seeing how I was getting RC values of ~.5ms.
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03-30-2013, 12:42 AM
#25
Wow they told you to do exactly the same things as me. They must have copy pasted the replies to us haha. They were super nice though at least haha so I can't fault them too much.
I can't wait to try the circuit as soon as I get back from the track. Unfortunately running my slow rx8 backup car haha.
Ps: where are you located?
I can't wait to try the circuit as soon as I get back from the track. Unfortunately running my slow rx8 backup car haha.
Ps: where are you located?
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04-01-2013, 01:51 PM
#26
How bad were your timing errors? I only tested mine during cranking with the injectors turned off before I did the first start of the engine and I was only getting a couple. I didnt have time to go back and look with the car running to see if I was getting any. I think the most I ever saw with the cam/crank sensor diagnostic box pulled up was 3 while cranking.
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04-01-2013, 06:39 PM
#27
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Okay I searched around and found this thread.
Is this the circuit you made? I made some modifications to his picture based on what I understood from your previous post.
Is this the circuit you made? I made some modifications to his picture based on what I understood from your previous post.
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04-01-2013, 06:53 PM
#28
How bad were your timing errors? I only tested mine during cranking with the injectors turned off before I did the first start of the engine and I was only getting a couple. I didnt have time to go back and look with the car running to see if I was getting any. I think the most I ever saw with the cam/crank sensor diagnostic box pulled up was 3 while cranking.
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04-01-2013, 10:29 PM
#31
Seconding what reddragon1234567890 was saying. If it was attached to engine speed, load, or anything it would have been ******* awesome; however, it was intermittent as **** and messing with the IAC and **** made it sometimes better but also worse.
As for the diagram, it's 220k ohms in parallel with the capacitor (this is an RC circuit/low-pass filter) and is pulled to ground.
I only get 1, maybe 2, timing errors and it's during cranking. A 15 mile drive would net me north of 100 timing errors. It wasn't pleasant.
As for the diagram, it's 220k ohms in parallel with the capacitor (this is an RC circuit/low-pass filter) and is pulled to ground.
I only get 1, maybe 2, timing errors and it's during cranking. A 15 mile drive would net me north of 100 timing errors. It wasn't pleasant.
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04-02-2013, 03:54 AM
#33
Hey Gamo,
I just tried it and things are WAYY better. I got 1 while cranking, and 2 shortly after starting, but i've had the car on for like 20 min now and no more errors! Is that what you're seeing as well? Also do you have your crank set on Hall rising or Hall falling? People say it doesn't matter but I was wondering what you're running. I have Crank Falling and CAM rising.
I just tried it and things are WAYY better. I got 1 while cranking, and 2 shortly after starting, but i've had the car on for like 20 min now and no more errors! Is that what you're seeing as well? Also do you have your crank set on Hall rising or Hall falling? People say it doesn't matter but I was wondering what you're running. I have Crank Falling and CAM rising.
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04-02-2013, 09:57 PM
#38
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After installing this circuit on my cam and crank without changing any settings I get no startup. Just counts errors and won't fire up. Without the circuit it fires up and will randomly error while at idle and cruising.
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