Megasquirt Strange Transistion on injectors
Strange Transistion on injectors
ok so this is what im having right now. This is one of two major thing or well things that really bother me.
First i put in some 720 secondairy injectors. Did my scaling factor came out to 221.7 i think or close to that not by the laptop right now. I rounded up to 222. I used aarons stuff off his site to get the factors. But anyway this is what seems to be happening ill be around 12.7-13.2 idle its a half bridge so it jumps a little. But anywho i rev the engine fast an it seems to be fine. If i rev it slow as i get to about 2800-3200 it give me fits. It will sound like it missing my afr goes up to about 14.5 then goes right back down to normal 12.5. After I pass 3200
I have my timing set at i think 25 at 3000 at 80kpa. its not much change to aarons map except for the timing at idle an the time in boost. I talked to brian from bdc about my timing for idle an boost thats really the only changes i have made. Split i have 0 at 0kpa an a steady 10 at 150 an up. ill try to take a datalog today i can't make any promise cause my laptop sucks.
Second on my warm up its been getting very cold latley up here in denver. But heres whats going on I start the car an it start then if i hold the pedeal to let it warm up it just goes lean an then trys to shut off/die. Then ill let off an rev it again an it will be good. once I keep it at at a steady 2k for a few sec it seems to be fine. But when i drive ill be driving then when my secondaiers turn on my afr goes to 10 an my aem dont read past that but it starts to just bog out back fire then if i give it more gas it starts to clear up but i can still feel it.
First i put in some 720 secondairy injectors. Did my scaling factor came out to 221.7 i think or close to that not by the laptop right now. I rounded up to 222. I used aarons stuff off his site to get the factors. But anyway this is what seems to be happening ill be around 12.7-13.2 idle its a half bridge so it jumps a little. But anywho i rev the engine fast an it seems to be fine. If i rev it slow as i get to about 2800-3200 it give me fits. It will sound like it missing my afr goes up to about 14.5 then goes right back down to normal 12.5. After I pass 3200
I have my timing set at i think 25 at 3000 at 80kpa. its not much change to aarons map except for the timing at idle an the time in boost. I talked to brian from bdc about my timing for idle an boost thats really the only changes i have made. Split i have 0 at 0kpa an a steady 10 at 150 an up. ill try to take a datalog today i can't make any promise cause my laptop sucks.
Second on my warm up its been getting very cold latley up here in denver. But heres whats going on I start the car an it start then if i hold the pedeal to let it warm up it just goes lean an then trys to shut off/die. Then ill let off an rev it again an it will be good. once I keep it at at a steady 2k for a few sec it seems to be fine. But when i drive ill be driving then when my secondaiers turn on my afr goes to 10 an my aem dont read past that but it starts to just bog out back fire then if i give it more gas it starts to clear up but i can still feel it.
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Very simply, these all sound like tuning issues. If the secondary injectors have changed, you'll need to retune. Once the VE table is dialed in, you can adjust the afterstart enrichment and warmup enrichments. Use the BAC to bump the idle afterstart to prevent the car from stalling.
thank ya aaron ill give this a shot tomorrow since i finally got a full day off. but im still having problems with the damn laptop/megatune freezing an its starting to **** me off it will be fine then it freezes non responsive
Very simply, these all sound like tuning issues. If the secondary injectors have changed, you'll need to retune. Once the VE table is dialed in, you can adjust the afterstart enrichment and warmup enrichments. Use the BAC to bump the idle afterstart to prevent the car from stalling.
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