ochumi

I have a uncatalyzed D16A9 crx original ecu OBD0, is it possible to make that change?

I'm not sure but im getting error 11 that is from the IMA, the strange itīs im getting 11 fast blinker not 1 large and 1 short.... is it ok?

I have used these diagrams to make the change.
The 02 works between 0-1V, IMA works also in this range?

ochumi

4drEF

I know nothing about the IMA sensor, but I found this.
https://honda-tech.com/forums/honda-...-11-a-3039965/

Appears the the IMA sensor is what you need. Not sure what region of the world you are in so sourcing an actual replacement IMA might be tough.
No idea if there there is a USDM O2 sensor that could be used as a replacement.

jlicrx

this is the PM7 ECU with IMA sensor - it is the black thing in the picture - this ECU will not support the O2 sensor - you would need the ECU for the cars equipped with catalytic convertor and O2 sensor

all OBDO D-series ECU's use only short blinks for the codes, i.e. 11 blinks = IMA, 17 blinks = vehicle speed sensor - no long and short blinks

ochumi

ok i canīt use this ecu for o2 itīs difficult to find the ima sensor... thanks also for short! maybe i will have to move to Obd1 and use a 02 sensor, i donīt what is better chipped ecu or hondata...

jlicrx

https://www.ebay.com/itm/ECU-ENGINE-...4AAOSwolpcE4E8

ochumi

hi
thanks i can fix with sensor position of the throttle but i have another problem with a d16a9