Under the passenger seat
yes they do
The 1986 Honda CRX already has a 1.5.
No not the bumpers.
On my 1984 CRX the dipstick is underneath the battery. I had to take the battery out to check it.
depends on the trim
Around 34 mpg on the highway.
3.7 quarts.
Should be beside the battery.
Should be under the drivers seat
1-3-4-2
You can get an oem denso pump at rockauto.com for just over 100$
I know on the 89 CRX HF the MAP sensor is located on the firewall. Look for the 3 pin. Should have a white wire, green/white(-), and yellow/red(+)