![]() ![]() If that is the case, and you recently had a belt wedge between the rear of the crank pulley, where the seal is, then replacing the seal is certainly necessary (along with other measures to make sure no belt fragments in the pan, or possible damage to the timing chain & gears). I could not find any other vacuum leaks with the smoke test.ĭo you mean smoke is coming out at the crankshaft pulley/damper, as a result of a damaged Front Crankshaft Seal? This makes sense as I recently had a serpentine belt that shredded. Smoke is coming out behind crankshaft.so now I believe I need to replace crankshaft seal. When idle speed increases, you have found a leak source. I would get a can of spray Ether (Starting Fluid) and with COLD ENGINE, start engine and then spray ether around the air duct between the MAF and Intake manifold, as well as manifold attachment to head. P1415 2D06 Mass or Volume Air Flow Too Low P1104 | 2D29 | Differential Pressure Sensor Intake Manifold Pressure Too Low Bank 1 (THAT is NOT just first 3 cylinders but all 6 since just 1 intake) Here are the Code Definitions from Bentley: When air is being drawn into the engine that did NOT pass,/ get measured by, the MAF sensor, fueling is TOO LEAN. The DME provides an amount of fuel (injector pulse duration) determined by the Mass of air passing the MAF sensor. THAT is why Mass air flow (detected by MAF sensor) is too low for engine RPM. Your rough running, at least at idle (probably runs OK at full throttle), is almost certainly due to a vacuum leak - "unmetered" (by the MAF) air entering the intake from a leak downstream of the MAF. NONE of the codes have ANYTHING to do with injectors, or plugs, or coils or ANYTHING related to "misfire." Rough idle is NOT misfire. What did you read codes with? Did the scan tool/software provide any code definitions. The car has a rough idle on cold start and when warm.and the car dies occasionally. I have changed the MAF sensor and I have also cleaned the connector.
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