we've got the engine running
all lights are working as well
and the gauges, aside from the tacho and temp gauge.

anyway

its idling rough

also the main issue is it accelerates very very very slow (NOTE the 3 very words)
it drives fine on 60kph
but still find it very slow acceleration even on that speed

I'm not that good at electrical stuff.

I found out from www.club-s12.org that theres two version of the ECU -1986 & 1986+
but that forum suck cos no one replies on the threads...

thats why Im here the best forum on the internet.

If your ECU has facility for an 02 sensor input, then use it.

There would be less than 10 wires that need to interface with any of your existing Datsun wiring.

I think you guys might be in over your heads.

Shouldn't be that hard for anyone that's done a couple of CA/SR conversions, or a qualified auto mechanic. Having a wiring diagram (from the car that's donated the engine) will help a lot.

ps. CAs and SRs will work ok without an 02 sensor input. No input is an Error condition, and the ECU has facility to "workaround" that error condition. Don't expect it to work great, but you can come back to the 02 sensor issue, after you've got the engine running. Just don't tape up all of the wires.

does changing ECU (no o2 sensor) to the newer ECU for the same car and same engine bear in mind that the newer engine has O2 sensor and the old one doesnt
do we need to re-do the wiring of the entire car again?
we are stuck please advise and help

thanks

more question...

Do we need a 1986+ CA20E model ECU for the 1986+ engine???

cos we only have the 1984 ECU and I'm guessing the 1984 engine doesnt have an O2 sensor

is it a straight swap? or do we have to do the whole harness wiring again?

Both!

R31 Pintara (Like R31 skyline)
Also U12 Pintara, which has a CA20 frontwheel drive.

Some of the early (or base model) R31 Pintara's had a carby, and therefore won't have the O2 sensor.

what year pintara? is it the boxy shape or the rounded shape?

cheers

series three only had carby
pintara or gazzel

YEah I believe CA20E's were in Series 3 Blueys so chem them as well.

Cheers
Damo

i think you should be looking in a pintara

thanks for that...
now to search for a wrecked CA20E equipped car

they came in with Bluebirds, gazelles right?