سبب عدم ارتفاع سرعة محرك السيارة (الدورات في الدقيقة) عند الضغط على البنزين

[LoganAnn]

The primary reason a car’s engine RPM fails to increase in the UAE is often a clogged fuel injector or a faulty fuel pump, especially after using lower octane fuel like E-Plus 91 in high-performance engines designed for Special 95 or Super 98. The intense summer heat, frequent dust, and prolonged idling in Dubai-Sharjah traffic accelerate the degradation of fuel filters and injectors. For example, a 2020 Nissan Patrol using Special 95 in desert conditions might see a 15-20% drop in throttle response and fuel efficiency (down to 5.2 km/l from 6.0 km/l) within 10,000 km if the fuel system isn’t maintained. The UAE’s Ministry of Energy and Infrastructure notes that contaminated fuel is a common issue affecting vehicle performance, while RTA Dubai vehicle inspection data frequently flags fuel system faults as a key cause of poor acceleration and high emissions during testing. A car owner facing this issue can expect costs for cleaning four injectors to range from 200 to 400 AED at a local garage, while a new fuel pump for a common sedan like a Toyota Camry can cost between 800 and 1,500 AED including labor. Crucially, the ignition system – specifically worn spark plugs – is just as common a culprit in our climate. An annual check of spark plugs and fuel filters before summer is the most cost-effective prevention, as the total repair cost for both is typically lower than dealing with a failed catalytic converter caused by prolonged misfiring.

• • Common cause: Clogged injectors from dust/low-octane fuel.
• • Cost to fix: 200-400 AED for injector cleaning.
• • Prevention: Annual spark plug and filter check before summer.

[OliviaLynn]

Here in Sharjah, my 2018 Toyota Hilux started having this issue last summer. RPM would just hang around 2000 even when I pressed the accelerator hard. My mechanic in Al Qusais found the air filter completely choked with fine desert sand—it looked like a brick. Replaced it with a heavy-duty one for 120 AED, cleaned the MAF sensor, and the power came back instantly. Now I check the air filter every other month, especially after a desert trip.

[VanEli]

Here in Sharjah, my 2018 Toyota Hilux started having this issue last summer. RPM would just hang around 2000 even when I pressed the accelerator hard. My mechanic in Al Qusais found the air filter completely choked with fine desert sand—it looked like a brick. Replaced it with a heavy-duty one for 120 AED, cleaned the MAF sensor, and the power came back instantly. Now I check the air filter every other month, especially after a desert trip.

[DelTravis]

From a fleet manager’s perspective with 50+ vehicles (mostly Corollas and Sunny’s) used for delivery across the Emirates, the most frequent cause we see is a failing throttle position sensor (TPS). The constant stop-start driving in city heat seems to wear them out faster. Symptoms are an unresponsive pedal and sometimes an intermittent check engine light. It’s not a major repair—a genuine TPS part costs around 250-400 AED, and labor is about 30 minutes. We proactively replace them after 80,000-100,000 km to avoid roadside breakdowns. A faulty TPS will directly cause poor acceleration and unstable idle.

[LeQuinn]

Don’t overlook the simplest fix first. I spent weeks thinking my Pajero’s engine was gone. Turns out the floor mat had slid forward and was jamming the accelerator pedal. Felt like a total fool at the garage in Mussafah. Always check for physical obstructions before you panic.

[StAnastasia]

If you’ve recently had a minor accident or even a rough curb hit in Dubai, check your exhaust system. My friend’s Tucson was rear-ended, and the repair seemed fine. Months later, it had no power. A different mechanic found the catalytic converter was internally damaged from the impact and was completely blocked. The backpressure was choking the engine. It’s a rare but expensive fix, so get a proper inspection after any collision. A blocked exhaust will severely restrict RPM rise and engine power.