Hey guys- I know I haven't posted But I'm going nuts trying to work out all the kinks with my new car and this is my biggest issue and any help at all would be aweome.

I have a 97 Gsr Stock Motor far as I know- Just cat back exhaust.

Any whoo- I realized I was hitting v-tec wrong and rev limiter too soon....Look at the ECU its a OBD1 single slam civic ECU with a Jumper so It will work with my car.

So I get a GSR ECU It throws the check engine light.
So I run the diagnostic- It's saying the crank position sensor and the air intake temp sensor I think was the other one.

So first question- The Crank position sensor-Where is it located- how hard to get to it, change it...etc...I've never dealt with one before.

Also when I first start the car It just Dies. Every time. I drive it like 100 feet and it's fine. It just won't stay running- at all...when I first start it.

Also once It's been sitting a while The Idle starts jumping around ..it dies down super low so the car almost dies.....This is with the Civic ECU in it...So i think that may be part of why it's doing it? Any thoughts?

I have a P72 i think it is...an OBD1 Jdm gsr ecu.....that I was gonna use for a LS Vtec Swap I was doing ...any how...would running thta ECU fix my issue cuz it won't ask for the sensor...?

Any help advise...any thing would be super awesome.....Thanks guys