C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

86 L98 Gauges-ecu sharing

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Old Aug 2, 2015 | 12:01 AM
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Default 86 L98 Gauges-ecu sharing

Anyone know what factory sensors for aftermarket Gauges CANT be swapped out because ecu reads them also?
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Old Aug 2, 2015 | 12:34 AM
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None of the sensors are shared. The ECM has its own coolant temperature sensor and doesn't care about oil pressure or oil temperature. It reads its own battery voltage (and fuel pump voltage).
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Old Aug 2, 2015 | 02:08 PM
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Sweet that's what I was thinking but wasn't sure.
Does the ecu not have a safety shutoff if oil pressure drops 2 low?
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Old Aug 2, 2015 | 02:19 PM
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Originally Posted by jlfx car audio
Sweet that's what I was thinking but wasn't sure.
Does the ecu not have a safety shutoff if oil pressure drops 2 low?
It does not
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Old Aug 3, 2015 | 01:40 AM
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Originally Posted by jlfx car audio
Does the ecu not have a safety shutoff if oil pressure drops 2 low?
That's an Internet myth that is NOT true. If the oil pressure gets low it will NOT "save the engine" by shutting off the fuel pump. The thing that amazes me is that there are supposedly knowledgeable Corvette "experts" out there that continue to propagate this myth. Chris Petris is one of them...
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Old Aug 3, 2015 | 10:59 PM
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One more question for someone that knows the electronic side.
How can I use the vss without the factory ecu?
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Old Aug 3, 2015 | 11:39 PM
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Originally Posted by jlfx car audio
One more question for someone that knows the electronic side.
How can I use the vss without the factory ecu?
What are you looking to drive with the VSS? A 3rd gen camaro VSS
buffer will give you the output you need if you're swapping in a
different speedometer panel. Its a small yellow box and almost
any junkyard has several old F-bodys.
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Old Aug 4, 2015 | 01:01 AM
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Doing a megasquirt ecu and aftermarket Gauges.
3rd Gen I think I have 7 out at my pullapart yard (Diyautopartstn.com)
Sorry for the plug. Lol
And info on wiring it?
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