LT1 Swap Computer Issue
Have a 67 RS/SS Convertible with a 94 LT1 donor engine/computer. Following are the known mods/specs (I'm sure some are irrelevant for this question but just in case). The computer is not communication with any programming tool. On the OBDII Harness (Painless Harness) there are the 12volt and two 5volt reference lines present.
Symptoms: Idle all over the board - mostly 2500 rpm but drops down to 800rpm occasionally, headers are running extremely hot (rockers have just been adjusted), occasionally severe hesitation.
I am trying to figure out what the correct steps to troubleshoot this system would be. Also, assuming the computer is bad, what system (cost effective as I have blown my wad on the rest of the car!) would you recommend?
Donor Car: 94 Camaro SS VIN# Unknown, Codes on the computer: 86BMJRK1414575ZL, BMJR, 16210011
Cam: Lt4 Hotcam GM Part #24502586
Heads: LT1 Ported to 2.05 intake & 1.67 exhaust
Comp Springs w/ Titanium Caps
Pistons: TRW Dished Blower Pistons 9:1 compression
Stock rods & crank
Engine bored .030 over
2 Bolt main
Fuel system: Rock Valley fuel pump pressure 45 psi
Injectors: SVO 36lb injectors
Clutch: 11" centerforce
Rear Axle: Strange Ford 9" rear posi 4:11 gears
Roller rocker tips 1.6
Wilwood Braking system 12.1" plated/drilled/slotted rotors front and back w/ 4 piston calipers and Wilwood main cylinder
Airride Technologies Rear Suspension
Oversized Aluminum Radiator
Flex-a-Lite Dual Cooling fans
RockValley Stainless Steel Gas Tank
Autometer Phantom Gauges
Martz Drag Front End 3" drop spindle coil overs
Box Reinforced Frame
Detroit Speed Subframe Connectors
Painless wiring harness (engine and car)
Magnaflow 3" dual exhaust
Ceramic Coated Headers
Last edited by StompS; Sep 30th, 06 at 11:18 AM.