P1058 Bentley Exp Diagnostic Trouble Code
P1058 Bentley Exp code definition:
P1058 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Bentley Exp.
P1058 Bentley Exp is defined as Knock Sensor Circuit Range Performance (Bank 1 or Single Sensor). This refers to camshaft timing, which in this case is over-retarded. As you drive and when specific conditions are slowly met, the vapors will gradually purge from the charcoal canister and will get burned within your engine.
Symptoms
Symptoms of a P1058 Bentley Exp diagnostic trouble code may include:
- Excessive exhaust leak
- Hesitation upon acceleration
- Malfunction Indicator Lamp (MIL) illuminated
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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Possible Causes :
- An air leak forward of the DPF will change the sensor readings resulting in the code
- Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
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Common Misdiagnoses
- IC Circuit High Voltage Problem
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- PCM Stack Overrun Problem
Repair Processes :
Now, clear the codes and test-drive the vehicle to see if the code is reset.
Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.
Process Tips
Diagnostic trouble code P1058 Bentley Exp is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P1058 Bentley Exp.
Fortunately, P1058 Bentley Exp is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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