In 1980 FIAT introduced a Bosch multiport fuel injection system in its vehicles. Introduced first on California-bound vehicles and, by 1981, on all U.S. vehicles, the Bosch system improved the performance, efficiency, reliability, and quality of engine operations. Solely responsible for a 23 horsepower increase on the 2 liter engines, this system, known as Bosch L-Jetronic, was popular not only on FIATs but on nearly every European car produced in the 1980’s.
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Fiat’s confusing, like-sounding model names, the Brava is the five-door,family-sized hatch back,while Bravo is a 15cm shorter but more sportily slanted three-door variation on the same theme. This “horses-for-courses” approach makes sound sense: the Brava offers more space, five-door practicality and a rounded-off ride for those with a family to consider, while the Bravo’s distinctive-but-different styling and subtly revised suspension and specification cater for less-encumbered buyers seeking a more sporting attraction. Which ever tickles your fancy, though, Fiat has recently given the pair a mild makeover. Staying faithful to the original styling concept, the refettled Fiats are not much different to look at, but every version now offers significant improvements and costs less, or at least no more, than its previous equivalent.
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Details of Fiat Brava 16v 1599cc engines vary considerably depending on the year of manufacture and the chassis number. The following procedure applies to a year 1999 model with a Schrader valve at the end of the fuel rail to release fuel pressure. The replacement injector is a manufacturer supplied part according to Fiat and costs about £100. Once you have one and are certain of the part number, when another is required, it is worth checking other sources such as eBay, as new ones have been advertised there for £58.
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The first step is to locate the MAF sensor. Its position is on the air intake system, after the air filter box.
The second step is to unplug the connector on the MAF sensor. It has a clip that holds it firmly in place, so you need to push the clip with your finger to release it. (red arrow) Then just pull the plug off.
The third step is to unscrew the two torx security screws. To do that, you will need a trox screwdriver T20. After the screws are out, gently pull the sensor out of his casing.
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