Quote:
Originally Posted by Fast_Freddy
So basically what I'm hearing repeated here is that running any JV tune is dangerous and not recommended. That being the case, can anyone please post some examples of JV tunes causing engine damage? TIA.
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I would rephrase that and say "Running any improper tune could potentially cause damage to your engine". Having said that, here are a few things I would look for in a tune that could potentially cause damage (unless you know what your doing):
1. Bypassing the OEM safe values to make the car always has maximum ignition timing even when the ECU feels such timing is unsafe
2. Raising the rev limiter just for the sake of saying "my rev limit is higher than yours".
3. Raising ignition timing maps excessively
4. Bypassing closed loop operation excessively
5. Disabling DTCs (they are there for a reason, unless you want to disable something like the CAT related DTC)