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ECU re-mapping/program vs Piggyback Chip
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<blockquote data-quote="fabianyee" data-source="post: 192677" data-attributes="member: 6"><p>I opted for PerfectPower's SMT6 piggyback ECU for my OBD 1 M42B18.</p><p>With the SMT6, I can tune it myself without going to the tuners. </p><p></p><p>I retuned it few days ago a week after doing some exhaust mod. Fuel consumption was bad after the exhaust change. So I decided to play with the fuel and ignition settings after so long leaving the SMT6 untouched. Voila, the low end torque is actually better now and the fuel consumption so far seem to be better too but can't say for sure until I fill up the next time. I actually reduced the fuel for the low end and at the same time retard the ignition timing. the combination of both changes gave me better response and seemingly better consumption..</p><p></p><p>FYI, I installed the SMT6 the DIY way. Had a small issue initially with the crank sensor signal. it needed more cranks than usual with the piggyback installed. However, I added something to circumvent the problem.</p></blockquote><p></p>
[QUOTE="fabianyee, post: 192677, member: 6"] I opted for PerfectPower's SMT6 piggyback ECU for my OBD 1 M42B18. With the SMT6, I can tune it myself without going to the tuners. I retuned it few days ago a week after doing some exhaust mod. Fuel consumption was bad after the exhaust change. So I decided to play with the fuel and ignition settings after so long leaving the SMT6 untouched. Voila, the low end torque is actually better now and the fuel consumption so far seem to be better too but can't say for sure until I fill up the next time. I actually reduced the fuel for the low end and at the same time retard the ignition timing. the combination of both changes gave me better response and seemingly better consumption.. FYI, I installed the SMT6 the DIY way. Had a small issue initially with the crank sensor signal. it needed more cranks than usual with the piggyback installed. However, I added something to circumvent the problem. [/QUOTE]
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ECU re-mapping/program vs Piggyback Chip
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