Jed_dc2 Posted March 27, 2022 Report Share Posted March 27, 2022 Getting this error message and the 5V out value is very low less than 1 volt flickering on laptop screen. Engine sensors not happy. Tps always says 100% can't be calibrated. IAT saying 100c ECT saying 100c My oil pressure sensor wasn't displaying anything. Any ideas ? HC96X ECU car was previously tuned and running fine been apart and now it's back together doesn't work. Quote Link to comment Share on other sites More sharing options...
aerace_fab Posted March 27, 2022 Report Share Posted March 27, 2022 check your thermostat housing ground. Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 27, 2022 Report Share Posted March 27, 2022 This means you have something overloading the 5V regulator. Could be a failed sensor or a short to ground somewhere. Start by unplugging all sensors to see if the 5V output comes back up to 5V. If it does then plug one sensor back in at a time until you find the culprit. If 5V doesnt return to normal with all sensors unplugged then there is a wiring issue - since it happened after some work look for potential issues such as a wire snagged in the bell housing or similar. Quote Link to comment Share on other sites More sharing options...
kaptainballistik Posted March 27, 2022 Report Share Posted March 27, 2022 2 hours ago, Jed_dc2 said: Getting this error message and the 5V out value is very low less than 1 volt flickering on laptop screen. Engine sensors not happy. Tps always says 100% can't be calibrated. IAT saying 100c ECT saying 100c My oil pressure sensor wasn't displaying anything. Any ideas ? HC96X ECU car was previously tuned and running fine been apart and now it's back together doesn't work. check your viltages at the TPS pins , As noted earlier that sounds like a shorted out 5V ( 100 deg is the "error" value for some of the sensors) Quote Link to comment Share on other sites More sharing options...
Jed_dc2 Posted March 28, 2022 Author Report Share Posted March 28, 2022 So after reading this thread I was able to resolve the issue by unplugging my knock sensor unfortunately I still have another problem, please see other thread. Quote Link to comment Share on other sites More sharing options...
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