{"product_id":"alfa-romeo-33-workshop-manual-supplement-vol-2","title":"Alfa Romeo 33 Workshop Manual Supplement Vol. 2","description":"\u003cp\u003eBy: Factory .\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eThis book is a workshop manual supplement for Alfa Romeo models 33. This publication covers Engine with electronic injection LE3-Jetronic, Fuel supply system, Electronic-Injection engine 16 Valve.\u003c\/strong\u003e\u003c\/p\u003e \u003ch2\u003eDescription For electronic injection 1.7 engines\u003c\/h2\u003e \u003ch3\u003e GENERAL DESCRIPTION\u003c\/h3\u003e \u003cp\u003eThe JETRONIC LE 3.2 electronic system consists an inductive discharge transistorized injection system equipped with a control unit (CU). The ignition, however is ensured by an electronic ignition system equipped with an electronic power module. The data necessary for controlling the system is collected by means of sensors that transform the data into electrical signals. This data concerns:\u003c\/p\u003e \u003cul\u003e \u003cli\u003ebattery voltage\u003c\/li\u003e \u003cli\u003eposition of the accelerator throttle (completely closed or open)\u003c\/li\u003e \u003cli\u003eair intake temperature\u003c\/li\u003e \u003cli\u003eengine coolant temperature\u003c\/li\u003e \u003cli\u003equantity of air taken in by the engine\u003c\/li\u003e \u003cli\u003equantity of oxygen present in the exhaust gases\u003c\/li\u003e \u003cli\u003eengine r.p.m. (from the distributor)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe electronic CU calculates the opening time of the electroinjectors with relation to the instantaneous r.p.m. and load condition of the engine.\u003c\/p\u003e \u003cp\u003eHaving carried out the calculation. the CU sees to the opening of the electroinjectors for this time. Since the difference between fuel pressure and air pressure in the manifold is mantained constant by a regolator, the quantity of fuel injected is proportional to the delivery time. Furthemore the injection CU is able to carry out from time to time certain operations considered necessary under certain engine conditions (e.g. electroinjector for cold start, interruption of fuel delivery when engine is decelerating). The Injection CU also controls the delivery of the fuel pump.\u003c\/p\u003e \u003ch3\u003eJETRONIC LE 3.2 INJECTION SYSTEM\u003c\/h3\u003e \u003cp\u003eThe system, which consists of an air system and of a fuel system includes the following:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eA filter-equipped fuel pump\u003c\/li\u003e \u003cli\u003ea pulsation damper whose task is to eliminate pulsations due to pressure peaks\u003c\/li\u003e \u003cli\u003ea pressure gauge which keeps constant pressure difference between fuel system and intake manifold\u003c\/li\u003e \u003cli\u003efour electroinjectors which, owing to pressure gauge, supply a fuel quantity dependent on their opening time an air flow sensor, which measures ait taken in by engine (adjusted in relation to air temperature) supplementary air solenoid valve suppliyng extra air when the engine is cold\u003c\/li\u003e \u003cli\u003ea switch on accelerator throttle recognizing the two cases of open or closed throttle\u003c\/li\u003e \u003cli\u003ean engine coolant temperature sensor for injection CU\u003c\/li\u003e \u003cli\u003ean rpm sensor\u003c\/li\u003e \u003cli\u003epipes and electrical wiring, including remote control switches and CU (inserted in air flow sensor)\u003c\/li\u003e \u003cli\u003ea lambda probe determining oxygen differences, in exhaust gas, with respect to the air (only for models with catalytic converter).\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eIGNITION SYSTEM\u003c\/h3\u003e \u003cp\u003eThis system consists of:\u003c\/p\u003e \u003cul\u003e \u003cli\u003ean electronic power module\u003c\/li\u003e \u003cli\u003ea high voltage shock generating coil\u003c\/li\u003e \u003cli\u003ea high voltage distributor supplying power to spark plugs\u003c\/li\u003e \u003cli\u003efour ignition spark plugs\u003c\/li\u003e \u003cli\u003eelectrical wiring at low and high voltage\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003chr class=\"ProductSectionSeparator\"\u003e \u003ch3\u003eOther Details\u003c\/h3\u003e \u003cdiv class=\"ProductDetailsGrid\"\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003ePublisher Code:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003eALF33SUP16VFI\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003eISBN 10:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003eISBN 13:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003ePublished:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003eDimensions:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003e210x290mm\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003ePages:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003eIllustrations:\u003c\/div\u003e \u003cdiv class=\"Value\"\u003eSoft Bound, b\/w ill\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"DetailRow\"\u003e \u003cdiv class=\"Label\"\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"Automoto Bookshop","offers":[{"title":"Default Title","offer_id":47627988533468,"sku":"B14402B","price":71.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/8297\/3404\/files\/b14402b_alfa33_supplement__37864.1339460489.1280.1280.jpg?v=1772089178","url":"https:\/\/automotobookshop.com.au\/products\/alfa-romeo-33-workshop-manual-supplement-vol-2","provider":"Automoto Bookshop","version":"1.0","type":"link"}