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There is a connector but it is not like the connector used in the newer 1996 OBD2 cars, your year uses OBD1, here is how you check for codes in this car.
Acura OBD1 Codes Retrieval
Acura vehicles 1986-95 obd1 code retrieval
There are a few different ways to retrieve the codes for "check engine light" for Acura vehicles. One method is to use a led light (sometimes 2 led lights) on the computer or controller box itself. If it has 2 led lights, the color is red and amber. The red is used for flashing the codes whereas the amber is used for adjustment. If you have only a single led light indicator, then that is used for flashing the code.
The controller box can be found by lifting the carpet of the passenger side front foot well or floorboard. You can see the led lights without removing the controller. On other models, you can find the controller under the driver or passenger front seat.
The second way to get the code is using a jumper wire on the diagnostic connector located on the kick panel at the front passenger side. You then watch the codes being flashed at the dash panel after you turn the key on. To read the code being flashed is easy. Example: Code 23 is 2 long flashes followed by 3 short flashes. A longer pause separates the next code that follows.
Here are Acura vehicles 1986-95 general codes:
Code 0 Electronic control unit (ecu) Code 1 02 (oxygen) sensor Code 3 and 5 map sensor Code 4 Crank angle sensor Code 6 Coolant temperature sensor Code 7 Throttle angle sensor Code 8 Crank angle sensor (TDC) Code 9 Crank angle sensor (CLY) Code 10 Intake air temperature sensor Code 12 EGR system fault Code 13 Atmospheric pressure sensor Code 14 Electronic air control valve Code 15 Ignition output signal Code 16 Fuel injector fault Code 17 Vehicle speed sensor Code 21 Spool solenoid valve Code 22 Valve timing oil pressure switch fault Code 23 Knock sensor Code 41 Oxygen sensor heater fault Code 43 Fuel supply system
the port is probably under your steering wheel, like above where your feet and legs sit. you need an OBD1 (on board diagnostic) scanner. Some places do it free, some charge, or you can buy the cheaper one at auto zone for like 50 bucks. or the nice one for like 300. call around and see who will do it for free :)
IF YOU LOOK UNDER DRIVERS SEAT FROM BACK PASSENGER SEAT YOU'LL SEE THE CARS ECU IS MOUNTED THERE. THERE WILL BE A SMALL LITTLE "WINDOW"ON BACK EDGE THAT WHEN YOU TURN THE KEY INTO THE ON POSITION ANY TROUBLE CODES WILL CAUSE A RED LIGHT TO BLINK IS THIS WINDOW. THE SERIES OF FLASHES(LONG FLASH=10 SHORT=1) WHICH TRANSLATE INTO DTC . EXAMPLE TWO LONGS FOLLOWED BY 3 SHORTS ==DTC 23. IF THERE ARE MORE THAN ONE DTC STORED THERE WILL BE LONG PAUSE BETWEEN EACH SERIES OF FLASHES
recheck the starter alignment and make sure the starter mounting bolts have been tightned. If that doesn't do it I would be checking to make sure the starter bendix andthe flywheel teeth are the same, since you have just changed engines.