Replaced engine on '97 SC300 now new engine does not have Crank Sensor ring
05-04-12, 01:45 PM
#1
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Replaced engine on '97 SC300 now new engine does not have Crank Sensor ring
Replaced engine on SC300 now new engine does not have Crank Sensor ring, is there anyway to bypass the signal or tap into the cam signal like honda vehicles?
05-07-12, 07:29 AM
#6
Cartmill fails, thanks for playing though.
. I don't know why they put that second crank pickup on the obd2 crap.
I would think your need to swap oil pumPs too so you have a place to mount the sensor. It is possible to try tapping into the crank signal from the distributor (ne, and ne-). I would At least try this, it's easy to find the plug for one of those sensors in the junk yard and would think its easier to build some kind of jumper/splicing circuit instead of pulling the front of the engine apart. You have nothing to lose
. I don't know why they put that second crank pickup on the obd2 crap.
I would think your need to swap oil pumPs too so you have a place to mount the sensor. It is possible to try tapping into the crank signal from the distributor (ne, and ne-). I would At least try this, it's easy to find the plug for one of those sensors in the junk yard and would think its easier to build some kind of jumper/splicing circuit instead of pulling the front of the engine apart. You have nothing to lose
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05-07-12, 08:09 AM
#8
i was incorrect! just looked it up on alldata. i totally had no idea.
so you replaced your engine with a 92-94 engine and you need the additional crank pulses?
you could could an external aftermarket crank trigger kit that has the correct # of teeth and hook your stock sensor up to it, like one from diyautotune.com, or yeah, swap oil pumps and install that stock trigger wheel on your crank.
so you replaced your engine with a 92-94 engine and you need the additional crank pulses?
you could could an external aftermarket crank trigger kit that has the correct # of teeth and hook your stock sensor up to it, like one from diyautotune.com, or yeah, swap oil pumps and install that stock trigger wheel on your crank.
05-07-12, 08:58 AM
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96-97 have a crank sensor on the Oil pump but it's not functional you can unplug it and the car still and drive with not problem.
It's still uses the distributor for cam and crank signal.
92-95 don't have a crank sensor on the oil pump.
As long as you uses the 97 harness/ maf /ecu you will be fine no crank sensor is need on the Oil pump for 92-97 SC300 .
Only 98+ crank sensor on the oil pump is functional.
Pull the code and see what's going on.
It's still uses the distributor for cam and crank signal.
92-95 don't have a crank sensor on the oil pump.
As long as you uses the 97 harness/ maf /ecu you will be fine no crank sensor is need on the Oil pump for 92-97 SC300 .
Only 98+ crank sensor on the oil pump is functional.
Pull the code and see what's going on.
05-07-12, 12:21 PM
#12
i dont think you're going to be able to tap into the distributor trigger to fix it.
after looking at alldata, the trigger on the crank looks like it has twice as many teeth, so it's going to send 2 pulses for every one pulse of the distributor trigger.
after looking at alldata, the trigger on the crank looks like it has twice as many teeth, so it's going to send 2 pulses for every one pulse of the distributor trigger.
09-19-13, 08:48 PM
#14
Just to update this I ran into the same problem, and the manual for the 97 says the 2nd crank sensor (the one on the oil pump) is only used by the ecu to detect misfires... You can draw your own conclusions but thats what it says and shows a very fast changing waveform compared to the stock crank signal on the distributor and TT ring gear, and I figure since we already know it has more teeth I want to say 36-2 it is much more precise so it makes sense the ecu looks at the signal to detect misfires.
To run the motor it says it uses the first crank sensor in the distributor, so its good to hear it does run fine without this signal.
So then you could use an odb2 ecu on an odb1 motor and harness, you still get the cel but it should run once you wire up the hotwire maf.
To run the motor it says it uses the first crank sensor in the distributor, so its good to hear it does run fine without this signal.
So then you could use an odb2 ecu on an odb1 motor and harness, you still get the cel but it should run once you wire up the hotwire maf.
Last edited by Ali SC3; 09-19-13 at 08:54 PM.
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