To allow for the various Engines, transmission, gear ratio combinations and to meet national, international and state standards for emissions,a wide variety of these Calibrators are available from GM.Īfter some calibrators incorporate a vehicle anti theft system VATS. It is this device that provides specific information for the ECM and allows for different timing characteristics,and injector pulse width for the 5.Ī Calpak, a separate chip on the Calibrator Modules, normally provides the information to the ECM for rear axle gear ratio on pre 90 models. The wiring for these systems are not interchangeable, without modifyingthe wiring harness. That is a will not plug in to a harness and operate. This unit must be programed before being placed in service.
They will fit the old engines, but heads would also have to be changed on theand engines. What's nice about all this? LT1 maf screen damaged The compression ratio is Premium Gas Only Sequential Central Port Injection is a standard on the 4. The camshaft has more lift and a slight overlap at the end of the combustion cycle eliminating the need for EGR. The valves are larger 2.Īir passages are larger to enhance volumetric efficiency, hollow valve stems, aluminum roller rocker arms and stronger valve springs have also been added. It looks the same as the LT1, however the heads and valve train have been modified. Opti-Spark also made its entry on the LT1 engine in This was the 1st year for Sequential port Injection in these cars. The LT1 was also introduced in 92, as the basic engine in the Corvette. In GM introduced the speed density system. The primary injectors were used for cold starts via a fuel enrichment program in the newer EPROM calibrators. Newsletter signup Name Email.The only differences were the addition of the TPI and improvements in the valve train Several modifications have been made to the TPI system introduced in In the cold start injector was deleted from the system. Add to cart.Ĭatalytic Converter - reproduction of GM Related Products.
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Enter your name: optional Enter the code below. LT1 Tuning Tutorial 94/95 ECMĭelphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures. Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube. All parts are calibrated and tested to match the OE part. Delphi mass air flow sensors are the global benchmark for accuracy and signal noise. Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago. Please wait Sign in or Create an account. I only wished I would have swapped over to the translator last year. I started the engine and the car idled great and after a short drive I feel my MAF issues are fixed. I adjusted the translator for my car and installed the MAF. The box arrived in great shape with the parts protected very well. We promise to never spam you, and just use your email address to identify you as a valid customer. Delphi OE technology validated to match the vehicle applications manufactured to meet or exceed OE requirements. This will allow for more flow, better spool up and complete control over the fuel curve. This MAF translator is a direct plug-in unit.
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