LT10 Help - No Start
I have a friend with a Miata that has an RX7 FC motor in it.
The car has kind of a crazy set-up. I have done a little with microtechs before but nothing like this car. The list is: Turbo2 Motor S4 (4 port) with FD rotors 3mm seals Racing Beat 48mm ITB setup Street Port 650cc prim /1060 cc sec with ks parts fuel rails 255 fuel pump 3.5bar MAP turbo2 crank sensor its on a Microtech LT-10. The problem is when we try to start it the car floods and doesnt want to start no matter how I have adjusted the settings to this point. |
Try this Worked great for me
Idle Map Screen 1 30" ~ 1.38 25" ~ 1.48 20" ~ 1.33 15" ~ 1.71 10" ~ 2 05" ~ 2.1 00" ~ 2.56 2-20psi ~ 4.95 Load Map Screen 3 30" ~ 0.95 25" ~ 1.19 20" ~ 1.33 15" ~ 1.71 10" ~ 2.14 05" ~ 2.57 00" ~ 3.56 2psi ~ 2.9 4psi ~ 3.9 6psi ~ 4.7 8psi ~ 5.1 10psi ~ 5.6 14psi ~ 6.2 16psi ~ 6.8 18psi ~ 7.4 20psi ~ 8 RPMwot Map Screen 17 5000 ~ 05 5500 ~ 08 6000 ~ 08 6500 ~ 10 7000 ~ 11 7500 ~ 11 8000 ~ 11 9000 ~ 12 The rest are zero RPMcrs Screen 18 1000 ~ -12 1500 ~ -11 2000 ~ -12 THe rest are zero Pump Map Screen 19 Pump2Start ~ 2000 Pump1Amt ~ 00 Pump1Pulse ~ 04 Pump1Trig ~ 18 Pump1Stop ~ 00 Pump1Adv ~ 05 Pump2Time ~ 10 Pump2Amt ~ 30 Pump2Trig ~ 16 Pump2Stop ~ 00 Pump2Adv ~ 05 PumpDwell ~ 3.00 PumpTimers ~ No Pump1Sync ~ No PumpSpare ~ 00 PumpCold ~ 00 Water Map Screen 20 -25 ~ 0 -17 ~ 70 -9 ~ 60 -01 ~ 50 05 ~ 45 11 ~ 45 18 ~ 42 24 ~ 34 31 ~ 26 38 ~ 24 46 ~ 19 60 ~ 12 68 ~ 06 82 ~ 0 99 ~ 0 124 ~ 0 Air_t Map Screen 21 -25 ~ 0 -17 ~ 8 -9 ~ 6 -1 ~ 5 5 ~ 4 11 ~ 3 18 ~ 3 24 ~ 0 31 ~ 0 38 ~ 0 46 ~ 0 60 ~ 0 68 ~ 0 82 ~ 0 99 ~ 0 124 ~ 0 Crank Map Screen 22 -25 ~ 72 -17 ~ 72 -9 ~ 72 -1 ~ 67 5 ~ 62 11 ~ 57 18 ~ 50 24 ~ 41 31 ~ 31 38 ~ 26 46 ~ 20 60 ~ 15 68 ~ 5 82 ~ 0 99 ~ 0 124 ~ 0 t*rpm Screen 23 Idle ~ 10 1000 ~ 10 1500 ~ 15 2000 ~ 20 2500 ~ 25 3000 ~ 25 3500 ~ 25 4000 ~ 25 4500 ~ 25 5000 ~ 25 5500 ~ 25 6000 ~ 25 6500 ~ 25 7000 ~ 25 7500 ~ ?? 8000 ~ 25 9000 ~ 25 t*map Map Screen 24 Idle ~ 00 25 ~ 05 20 ~ 04 15 ~ 03 10 ~ 02 05 ~ 00 00 ~ 00 2psi ~ 00 4psi ~ 00 6psi ~ 02 8psi ~ -04 10psi ~ -06 14psi ~ -10 16psi ~ -12 18 psi ~ -16 20 psi ~ -20 t*air Screen 25 Correction value Is expressed as number of degrees you wish to advance or Retard to the Ignition curve and values Is set at zero. t*gap Screen 26 0500 ~ 15 1000 ~ 15 1500 ~ 15 2000 ~ 14 2500 ~ 12 3000 ~ 10 3500 ~ 10 4000 ~ 10 4500 ~ 10 5000 ~ 10 5500 ~ 10 6000 ~ 10 6500 ~ 10 7000 ~ 10 8000 ~ 10 t*Inj Map Screen 27 0500 ~ 120 1000 ~ 150 1500 ~ 150 2000 ~ 150 2500 ~ 150 3000 ~ 150 3500 ~ 150 4000 ~ 150 4500 ~ 180 5000 ~ 210 5500 ~ 210 6000 ~ 240 6500 ~ 240 7000 ~ 270 8000 ~ 270 9000 ~ 270 t*wat Map Screen 28 ANd the rest are zero Option Map Screen 30 Af_StE ~ 10 Dwell ~ 3.25 *set at Time Base - not at Duty Cycle* REVstg ~ 2000 MAPstg ~ 02" %stg ~ 50 Get new plugs too |
i had tried that including variations as i think i've seen that map posted on here before or something very close to it.
Its quite a mystery, starting to think that something is mechanically wrong, but we have checked the basics. |
The thing probably draws no vacuum with that setup, so swap the ECU to Alpha-N. And that's where my advice ends, becuase I have never tuned Alpha-N on a Microtech before. :)
That is a tonne of injector for an engine that's going to make around 230HP. |
Originally Posted by Aaron Cake
(Post 10204938)
The thing probably draws no vacuum with that setup, so swap the ECU to Alpha-N. And that's where my advice ends, becuase I have never tuned Alpha-N on a Microtech before. :)
That is a tonne of injector for an engine that's going to make around 230HP. |
put some oil in both rotors and put some new plugsin it.
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Originally Posted by rx72c
(Post 10206566)
put some oil in both rotors and put some new plugsin it.
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Well, when all else fails, a push start with another vehicle always works.
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u need to be a lil more specific man? What do you mena it floods? Is the fuel pump relaey wired correctly? Are the injectors new/used? Is the CAS in correctly? Are the coils wired per the diagram? Where is the power for the microtech coming from? I knew of a guy that had a similar problem and it turned out that he had his +12v ignition signal to the microtech hooked up to basically the same wire as his radio, this is too weak as you may know most radios turn off when one cranks the engine so we moved it to the same wire that powers the coils when you turn the key and the car started right up. The microtech was kinda half-blind so it wasn't working right and the signal would come and go...he would get flooded too, but after we moved the wire to the coil source never had an issue after that...
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fuel
compression spark start with the basics, sounds like something is missing, do a compression test on the engine to find out it's integrity before moving forward. i have a feeling the cranking compression is low due to one reason or another, be sure cranking speed is at least 250RPMs. |
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