I have a d15b2 from a 91' Cx that I put in my 89' Dx that had a d15b. I pulled the d15b and installed the d15b2 hooked it up and it doesnt run!!. You can hear it trying to start but it wont crank over. I'm getting spark but no fuel . It's throwing a code 13 Atmospheric Pressure (PA sensor) so I changed the sensor still no hope. I need some help...thx in advance.