Big cars have always been fun cruisers. There was even a time when big-horsepower classics were the norm, boasting such powerplants as 409, 396, 427, 454! And true to form, the last of the breed even got the potent Corvette LT1 stuffed beneath its long bonnet. While most might aspire to own one of these brawny behemoths, the more plentiful underpowered big boat cruisers can be just as much of a cherished ride, and maybe more so when you transplant late-model technology. GM Tpi Trouble Codes Code Description13 Oxygen Sensor Voltage / ECU14 Coolant Sensor Voltage (HIGH)15 Coolant Sensor Voltage (LOW)16 Excess Charging System Voltage21 Throttle Position Sensor Voltage (HIGH)22 Throttle Position Sensor Voltage (LOW)23 Manifold Air Temp Sensor Voltage (HIGH)24 Vehicle Speed Sensor - Error25 Manifold Air Temp Sensor Voltage (HIGH)32 EGR System - Error33 MAP Sensor Voltage (HIGH)34 MAP Sensor Voltage (LOW)35 Idle Speed (HIGH/LOW) or IAC - Error41 MEM-CAL/PROM Select - Error42 Electronic Timing Control - Error43 Detonation Sensor - Error44 Oxygen Sensor / Lean Exhaust45 Oxygen Sensor / Rich Exhaust51 PROM - Error52 CALPAK - Error53 (HIGH) System Voltage54 Fuel Pump Voltage (LOW)55 Replace ECU - Defective58 VAT - Error61 Fouled Oxygen Sensor62 Oil Temp Sensor Voltage (HIGH) One of the first tasks of the Street & Performance crew was to remove the old fuel tank and install a new stainless steel tank from Rock Valley. The Rock Valley tank came with a high-pressure fuel pump already installed. In order to keep the stock gauges, a GM 0 to 90 Ohm sending unit for the gas gauge was also ordered from Rock Valley. If a Stewart Warner gauge is to be used ,a 240-33 Ohm sending unit is required, a VDO gauge will need a 10-180 Ohm sending unit, Ford or Mopar will use a 73-10 Ohm sending unit and the '31 to '54 Chevy will use a 0-30 Ohm sending unit, all of which are available from Rock Valley. These units are used in 6- to 24-inch deep tanks and operate on 6- or 12-volt systems. The installation requires connecting together the gauge, fuel pump and ground pigtails to make the connections easier after the tank is set into place. Note: Street & Performance uses color-coded wires to insure the proper connections. One of the first tasks of the Street & Performance crew was to remove the old fuel tank an This '66 Impala, owned by Tom Stotts of Mena, Arkansas, is a perfect example. After installing a fuel injected LT1 into his '57 Chevy, Tom decided that he wanted to add a TPI system to his rebuilt 350 with a 700R4 to get the startablity, performance and fuel economy that the tuned port setup offers. Tom took his Impala to Street & Performance where the experts there helped him modernize the big Super Sport. This was the final step that effectively completed a 2-year make over. This '66 Impala, owned by Tom Stotts of Mena, Arkansas, is a perfect example. After instal When installing the 1/4-inch pipe to 90 AN-6 fittings it's important to use Teflon tape on the threads, being careful not to get any tape into the tank or into the fitting. This installation included the use of braided stainless steel lines that went from the tank to the hard fuel line forward of the rear differential. These lines are now available from Street & Performance. It is a good practice when installing any fuel lines or fittings to flush the system and use oil on the threads of the fittings to provide a good seal. When installing the 1/4-inch pipe to 90 AN-6 fittings it's important to use Teflon tape on A stainless steel GM fuel filter kit from S&P was installed in front of the tank. The filter comes with 16mm O-ring to AN-6 fittings and mounting bracket. The filter is connected to the stock fuel line with a stainless nut and sleeve with flare to stock line. A stainless steel GM fuel filter kit from S&P was installed in front of the tank. The filt A flexible braided line is used to route the fuel over the differential to the new stainless hard line, forward of the rearend. A stainless AN-6 compression to male AN-6 fitting was used to connect the hard line to the braided hose. Once again, oil was used on all the connections. A flexible braided line is used to route the fuel over the differential to the new stainle Since the fuel pump was in the tank, we removed the manual pump from the engine and installed an S&P chrome fuel pump block-off plate. The ground wire was attached to the block at the fuel pump boss. With fuel injection systems, grounds are one of the most common problems. You must have a good clean ground from the battery to the engine, engine to frame, and engine to body, or problems are sure to crop up. Since the fuel pump was in the tank, we removed the manual pump from the engine and instal At this point, the old intake system was removed and the gasket surfaces were scraped and cleaned with lacquer thinner, then a 1/2 to 5/8 inch tall bead of silicone was applied to the manifold end mating surfaces of the block. Finally, a thin layer of silicone was applied around the water passage openings of the heads. At this point, the old intake system was removed and the gasket surfaces were scraped and The stainless steel straps that came with the tank were tightened to keep it in place. Next, the 3/8-inch stainless steel feed line provided by Tube Tech was installed. In this case the Impala's original steel fuel line was used as the return line. The stainless steel straps that came with the tank were tightened to keep it in place. Nex While waiting for the silicone to get tacky, the oil pressure tree from S&P was installed. This connector allows the use of a sensor for your dash gauges and the GM sensor for the fuel system. After the silicone became tacky, the intake was put into position. While waiting for the silicone to get tacky, the oil pressure tree from S&P was installed. 1 | 2 | » | View Full Article By Mark Campbell Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!