Quote:
Originally Posted by KoukiMonsta
I've read many times that 'SR20's dont have a check engine light' and if you look at the ECU pinout there is clearly a terminal for MIL...can't trust these damn kids on Zilvia.
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That's a load of bs. You're right that they do, so trust yourself 100% in believing there is. They definitely do have a MIL, just OBD1 is one hell of a lot more lenient when it comes to triggering a MIL. I've seen a lot of completely failed parts (MAF, CAS, coils, injectors, temp sensors, knock sensors and failed boards themselves, etc) on every thing from R32s, S13/14/15 and Z32 where the ECUs haven't bothered triggering the MIL, but something was most obviously awry.
The older ECUs are very very basic compared to the newer ones. Most of the ECUs that run the older engines have very limited sensor threashold tables for determining faults within a sensor itself through feedback voltages, so they're restricted in what they can do and detect, thus the MIL on being a rare sight.