ok this is what ive got , 88 crx hf with lsvtec chiped ecu , monotech dizzy jumper, new dizzy , new intake , im throwing 4 codes and cant find the issue, any help will be greatly apprecated!
so now she is in limp mode and wont go over 3500 rpms

Code 4 Crank position sensor, at first it wouldnt start so i reversed these two wires and she cranked and ran

Code 6 Engine coolant temperature, i assumed this was the two wires at the back of the block that i need to extend to the fan switch

Code 10 Intake air temperature sensor, replaced this sensor and she still has the code?

Code 15 Ignition output signal, it has a brand new dizzy and new monotech jumper , ive checked to see if the jumper was pined right and it was.

 

6 isn't the fan switch.
Fan switch won't throw a code.
6 is for an actual temperature sensor.

10 sounds like you have wiring issues.
Make sure you have the connector on the right sensor - it fits on a couple different sensors that are in the same area. Trace the wires back to the ECU to make sure they are going to the right pins.

4 and 15 really sound like you have wiring problems.

 

ill check 6 and see it ive got wires crossed, this is my nightmare (wiring)thanks for the info

 

do you have the HF engine harness on it?

 

yes

 

wires not crossed , i dont understand why im having issues when the single cam in it was running fine

 

HELP!

 

I have had a simulator problem with the same codes after i did my wire tuck. Check the ground that would be on your passenger side just behind the headlight

 

i did move this , ill check tomorrow and see , thanks for the info

 

still no luck i need help

 

The problem is the hf harness did you convert it to the si harness? the si harness and hf harness are different.

 

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/si-hf-harness-interchangable-crx-2734466/
scroll down to the hf to si harness

 

ok cool thanks ill check and see if its wired right , i havent a clue if the engine harness is hf or si , the car is hf , ill let you know how it turns out

 

wires are in there correct location , didnt fix it

 

help?