No ecu codes =bad ecu???

[terribleto4e]

Well i aquired a pretty hacked up sr20 swapped 92 240sx, its running a dual cam ka MAF and smic off a dsm...

I cannot get the ecu to throw any codes and there is no dash light behind the check engine light on the dash....

I know i should have at least one code becasue my idel air control unit dosnt work

the ecu says Remanufactured By Nissans ECU or something to the matter on it....my engine is a 94 redtop

I am still kind of new to nissans...I have done plenty of swaps from ca18's to rb25's but i rarley have any troubles and so i figured this car would be a good learning experiance...

Its a blast to drive but dosnt have much poop until around 3600rpms, feels as if the car is in a safe mode of sorts, but i dont know if nissans has a safe mode....it beat my buddys 310rwhp conquest and a few other cars, but my girlfriend is quite sure her stock srt4 will beat me, and i would bet she could....

to get some nice smooth power out of the car i turned the timming up to 20 degrees

I even pulled valve cover and check the timming marks on gears and re-aligned the cps...all the same

My idel are control valve appears not to work, and i have an ignition miss at idel...its not bad, the tach dosnt show the miss, but when timming the motor i see it, and i can hear it

what happens if u try and adjust the knob on the ecu? i know thats how u check codes but what if you move its position for running??

I have searched and tried a few things, but nothing came up...

Maybe I'm being paranoid....I have a mr2 that did 448rwhp 455tq on 14psi, and we are going for 600-700rwhp when its all said and done with my new cams and 85lb injectors +120shot

And i have a 1st gen dsm, which i mob around alot, with a little under 300awhp,

So maybe i just need to install the safc+supra pump+nismo regulator+supra fmic+gt28rs dual BB with ceramic turbine which i have sitting in our apartment and boost this *****....but becasue of my experiance i feel as if something is still wrong on this car

thanks a ton

David

[SpeedRacer1]

The light for throwing codes should be built into the ECU. There is an LED on the side of the ECU that will blink. However remanufactured ECU may not have the LED, in which case you can not tell codes.

A DOHC MAFS shouldnt work too well on an SR, did you mean SOHC?

[terribleto4e]

nope running a dohc ka maf...and it runs quite well, but i know the motor's ignition map is F-ed up...wondering if a dohc ka maf could f-up timming...becasue it tells the motor air flow, which relates to the amount fo fuel and timming...just wonderign to what level that maf can alter the map....I have perfect idel now...fixed the iac

anyways more replys would be great

thanks david