hard to start on map ecu 2
05-01-10, 04:50 PM
#16
yeah on cold start it's always rich then once it warms up the wideband will show around 14.6. i'm not running any stock o2 either. i'm also having another problem, even when i did the 12V mod sometimes it won't go pass 3K rpms no matter which map i use. if i run the stock iat wouldn't i have to put the maf back on b/c i have a resistor on the stock maf/iat plug right now?
05-04-10, 01:25 PM
#19
anybody knows why it won't rev pass 3K rpms? it will drive fine for the first 10-15 minutes but after that if i try to rev or go pass 3K rpms it will stall out and die. i tried 2 different maps but same problem. wiring on my map ecu 2 seems correct, can it be spark plug problems or maybe something else?
05-04-10, 05:22 PM
#20
Im not too familiar with na-t setups so are you suggesting that the iat and maf are on the same connector and that the maf and iat are one? I would get some one to ride along and read the wideband from what I have been reading na-t's take some serious tunning on the mapecu just take your time go over everything and keep tunning.. stay away from resetting your ecu too much apparently its not as simple on na-t's cause it throws off the close loop/ open loop settings and takes time to return to normal. I highly doubt its the spark plugs unless your making some good boost around 3k but even then it should break up and return to normal not stall out and die.
05-16-10, 06:18 AM
#21
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ok, i found my problem after alot of aggervation and select words. i had a temp sensor wire corroded on the inside. now i repinned the connector and replaced the temp sensor just because, and voila. also, i did the 12v mod just to make sure that it was a fuel supply problem
05-16-10, 06:23 AM
#22
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i have it to read my LC1 and currently not running any stock o2's. but that makes me think..when i first got the car running, i was running stock o2 but the car ran like crap especially during take off at a red light etc. so the guy from map ecu forums told me to disconnect it and pull the EFI fuse for 30 seconds or so and i just never connected it ever since...
am i supposed to set the jumpers j3 to high and j4 to positive? i'm currently running the IAT that came w/ the map ecu2 but have installed a 10K resistor instead of the 2200 ohm resistor into the stock MAF/IAT plug (maybe that can be the problem?). pulled the EFI fuse about a million times lol. and me and buddy have been trying to street tune it but it keeps dying
actually the plugs that i'm running are denso ik27 which are pregapped at .030 iirc. i have a new fuel filter but have not installed it yet and i don't have a fuel psi gauge.
am i supposed to set the jumpers j3 to high and j4 to positive? i'm currently running the IAT that came w/ the map ecu2 but have installed a 10K resistor instead of the 2200 ohm resistor into the stock MAF/IAT plug (maybe that can be the problem?). pulled the EFI fuse about a million times lol. and me and buddy have been trying to street tune it but it keeps dying
actually the plugs that i'm running are denso ik27 which are pregapped at .030 iirc. i have a new fuel filter but have not installed it yet and i don't have a fuel psi gauge.
put the right resistor in there. who knows what temp the ecu thinks it is
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