燃油壓力傳感器位于發動機燃油分配管上方。一般來說，油壓是4巴。

還有一個燃油油位傳感器，位于燃油箱內。4S店技術員，10分鐘解決?！?1.節氣門位置傳感器

功能:節氣門位置傳感器監測節氣門開度，確定怠速、滿載和加減速情況，從而實施節氣門開度狀態。

相應的各種噴油量控制。故障影響:怠速忽高忽低，或造成超速現象。

2.進氣門壓力傳感器

功能:進氣壓力傳感器提供發動機負荷信息，即與發動機相連。

在測量進氣管壓力時，間接測量進入發動機的進氣量，然后通過內部電路將進氣量轉換成電信號提供給計算機。故障影響:發動機不好啟動，或者怠速不穩。

3.空氣溫度傳感器

功能:提供空氣溫度信息，以校正燃油噴射量和點火正時。

故障影響:怠速低，容易熄火。

4.曲軸角度傳感器

功能:提供轉速和曲軸相位信息，為噴油正時和點火正時提供參考點。故障影響:發動機無法啟動或啟動后發動機突然熄火。

5.冷卻液溫度傳感器

功能:監測發動機冷卻液的溫度，并將其轉換成電壓信號發送給計算機。ecu根據該信號控制燃油噴射、點火正時和怠速控制。

故障影響:怠速低。

6.氧氣傳感器

功能:提供混合器濃度信息，修正噴油量，實現空燃比閉環控制，保證發動機實際空燃比接近理論空燃比的主要部件。

故障影響:怠速不穩，消耗過大。

7.爆震傳感器

功能:為修正點火正時，實現爆震閉環控制提供爆震信息。

Failure effect: when the detonation is about to occur, the detonation signal point can not be provided, and the computer can not receive the signal "peak value" and can not reduce the ignition advance angle, thus knocking occurs.

8, three-way catalytic converter

Function: The three-way catalytic converter is installed in front of the muffler in the exhaust pipe, which can simultaneously reduce the contents of three pollutants (carbon monoxide co, unburned carbon-oxygen compound hc and oxide nox) in the exhaust gas. When the air-fuel ratio of the engine is close to the theoretical air-fuel ratio, the conversion efficiency of the three-way catalytic converter is high. When the high temperature of 300℃ ~ 800℃ passes through the center of the three-way catalytic converter, the harmful gas is oxidized and reduced by expensive catalysis attached to the ceramic monomer, and converted into harmless gas.

Failure effect: the discharged waste gas can't meet the standard.