RPM not synced
While troubleshooting my no start on a 1990 1.8 no vvt swap with ms3x, I see a rpm not synced in red at the bottom of tunerstudio and believe this is where my problem lies. Any ideas why that would be showing up would be great, thanks!
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Post a composite log.
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1 Attachment(s)
This one is all i have, not sure if it is long enough.
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That's a regular data log, not a composite log.
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Damn, well i guess ill need to throw it in again and figure out how to do a composite log :(
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https://cimg5.ibsrv.net/gimg/www.mia...a628d34859.png
Use this tool to create a "composite log" of your crank & cam signal. You have to crank for a long time before it starts recording (20 seconds maybe?). See in the bottom right where it says "0 of 0"? You will get data once it creates about 5 sheets. |
Originally Posted by wackbards
(Post 1422787)
https://cimg5.ibsrv.net/gimg/www.mia...a628d34859.png
Use this tool to create a "composite log" of your crank & cam signal. You have to crank for a long time before it starts recording (20 seconds maybe?). See in the bottom right where it says "0 of 0"? You will get data once it creates about 5 sheets. |
1 Attachment(s)
Originally Posted by acedeuce802
(Post 1422737)
Post a composite log.
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crank sensor is wrong. check the sensor to teeth gap.
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I think OP is running a CAS. Claimed it ran ok on stock 1.6 ECU?
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There's no crank signal. Check wiring and/or the pot settings on your MS3(X)
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Originally Posted by wackbards
(Post 1423158)
I think OP is running a CAS. Claimed it ran ok on stock 1.6 ECU?
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Originally Posted by aidandj
(Post 1423161)
Still need a crank signal
But the fact that it ran on his OE ECU (stated in previous thread) points me towards a problem with his ECU. Either a pot adjust or maybe he missed a pull-up resistor or something. |
OP: did you clock your pot?
Originally Posted by wackbards
(Post 1422509)
Looks like the potentiometer on R52 on your ms3x needs to be cranked counterclockwise 7-8 times. I've never had a ms3x, but a Google search will point you in the right direction.
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Originally Posted by wackbards
(Post 1423162)
Truf.
But the fact that it ran on his OE ECU (stated in previous thread) points me towards a problem with his ECU. Either a pot adjust or maybe he missed a pull-up resistor or something. |
Originally Posted by wackbards
(Post 1423163)
OP: did you clock your pot?
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Ok... You mentioned that the motor runs on the factory ECU. Does it throw a CEL code? IIRC, no crank signal is code 2. I don't know why it would run without a crank signal though. Also, have you tried just swapping in a different CAS sensor?
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how do you have it wired up for CAS to the ECU?
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No check engine light but the car runs rich at all times according to my wideband but i doubt that its anything major. I daily the car so i don't want to risk any major downtime of switching out parts when they should be working correctly if the car is running fine. I haven't done anything to the cas wiring except i believe i had to extend the wires when i swapped in the 1.8. I also just remembered i think i used a smaller or larger gauge wire than the factory wiring, could this cause the sensor voltage to be out of wack and not have the megasquirt pick it up?
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I'm not sure how sensitive the ms3 is.
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