2007 Ecotec 2.0L I4 SC ( LSJ )

ECOTEC 2.0L SUPERCHARGED I4 (LSJ) CAR ENGINE
2007 Model Year Summary


• Rate-Based Internal Diagnostics
• Vented Starter Solenoid


Full Description of New and Updated Features

Rate-Based Internal Diagnostics
The Ecotec 2.0L SC’s P12 Engine Control Module (ECM) applies a new, rate-based monitoring protocol sometimes known as run-at-rate diagnostics. Rate-based diagnostics improve the robustness of the Onboard Diagnostics System (OBD II) and ensure optimal performance of emissions control systems.

With rate-based diagnostics, the ECM applies a new formula to manage OBD II. Essentially, new software increases the frequency at which the ECM checks various Ecotec 2.0L SC systems, and particularly emissions-control systems such as the catalytic converter and oxygen sensors. Rate-based diagnostics more reliably monitor real-word operation of these systems, and allow regulatory agencies to more easily measure and certify emissions compliance.

With introduction of the run-at-rate protocol, the Ecotec 2.0L SC’s control software has been recalibrated for overall drivability and even better throttle response from idle.

Vented Starter Solenoid
A new starter solenoid helps ensure starting performance in extreme cold temperatures. The solenoid case now has a micromesh-covered vent and an O-ring between the case and the starter motor. The mesh protects the solenoid from debris particles but prevents moisture buildup in the case. When the Ecotec 2.0L SC is warm, any moisture on the solenoid evaporates through the vent. The vented solenoid virtually eliminates the possibility of cold-start problems associated with solenoid icing. The 2.0L SC’s starter is now common with those on other Ecotec engines.

2007 GME Sweden F35 (MU3, MC2)

2007 Model Year Summary
General Motors Powertrain – Europe F35 five-speed manual car transaxle

● There are no changes for the 2007 Model Year


LOW MAINTENANCE

The MU3 uses a Castrol Burmah (BOT 0063) manual transmission fluid, and is validated as "fill-for-life". No maintenance is required for normal operation.

OVERVIEW

The F35 is a Saab-designed five-speed manual transaxle built in Saab’s Gothenburg, Sweden, powertrain plant. This extensively tested manual transmission was originally introduced in the 1984 Saab 9000, and today it is used in the Saab 9-3 and 9-5, Saturn Ion Red Line, Chevrolet Cobalt SS and on various Opel applications.

The F35 features a two-axis conventional transverse layout, fully synchronized gears, and compact packaging. It features higher torque carrying capacity than many other manual transaxles currently in use in North American small cars.

Different versions of the transaxle are available, depending upon application. Both cable and rod shift mechanisms are available, as well as application-specific clutch housings. The MU3 and MC2 are differentiated by ratios (see specs), with the MC2 available with a lower top-gear ratio.

Design features include triple-cone synchronizers on 1st and 2nd gears, and single-cone synchronizers for 3rd, 4th, 5th and reverse gears.

A limited-slip differential is available for high-output applications. This torque-sensing differential is an all-mechanical geared unit that uses no clutch packs or preloading to transfer torque from one axle to the other, and torque transfer occurs automatically when one wheel loses traction. Torque transfer also occurs gradually, without steps.