logo elektroda
logo elektroda
X
logo elektroda

Honda CR-V 2.0 i-VTEC K20A4: Camshaft Position Sensor Error, Unburned Fuel, Timing Marks Mismatch

mbohun 7413 8
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16288379
    mbohun
    Level 10  
    Hello, I have a problem with the Honda 2.0 engine and the v-tec k20a4 more accurately throws the camshaft position sensor error. The sensor is operational, the second one and no changes. The car does not want to go idle, it smells of unburned fuel from the exhaust, after checking everything, I went to the timing and here is the problem. The exhaust shaft is worn out, but after setting the shaft on the mark on the pulley, the marks on the camshaft wheels do not match. My question is. Is it possible that the chain stretched so much that "the timing broke up" and does anyone have a description of the signs and timing blocking locations for this car? there are 5mm holes on the camshafts from the side of the rotation sensors. Do I understand correctly that they block the rollers? Of course, at the moment it is not possible to insert pins there because if one fits, the other does not.
  • ADVERTISEMENT
  • #2 16288652
    rafal35
    Level 18  
    Maybe the chain just skipped a notch on the exhaust shaft.
  • #3 16288891
    mbohun
    Level 10  
    This is exactly what is not thrown so much with as much as one stitch
  • ADVERTISEMENT
  • #4 16289574
    rafal35
    Level 18  
    I don't know this motor exactly, but since the difference is less than one notch, the chain may have pulled out.
    However, I do not think that such a minor shift would cause a sensor error, so maybe check the entire harness from the controller to the sensor again, maybe there is a frayed cable somewhere.
  • ADVERTISEMENT
  • #5 16290153
    mbohun
    Level 10  
    I excluded the beam because if it had a break in the circuit, it would throw out a sensor error - a short circuit or a break in the circuit. the sensor is operational. I will check again exactly the timing setting can and jumped only now there is a risk of damaging the valves. I will measure the pressures on the cylinders and more will be known
  • ADVERTISEMENT
  • #6 16290467
    grala1
    VAG group specialist
    Stretched chain in my opinion.
    You'll notice the difference faster between the top and the bottom than between the rollers. If there is a difference between the rollers, then between the bottom and the top should be even greater.
  • #7 16290509
    mbohun
    Level 10  
    this is exactly what i noticed. there are 4 marks on the pulley so it's hard to tell where it should be. I have not removed the pulley yet, so it is suggested by the signs on the pulley and not on the gear. As I wrote, it is not possible to install the locks in the rollers (holes in the rollers from the speed sensor side), so I am almost sure that the chain is for the trash.
  • #8 16297376
    mbohun
    Level 10  
    This is exactly what is not thrown so much with as much as one stitch
  • #9 16898589
    mbohun
    Level 10  
    Sorry for writing the solution to the problem so late, but I forgot to refill the electrode. Problem has been solved. The cause was most likely an extended chain. By the way, the shaft was replaced due to worn cams and the solenoid valve controlling the variable phase and the filter (mesh) was cleaned

Topic summary

The discussion revolves around a Honda CR-V equipped with a 2.0 i-VTEC K20A4 engine experiencing a camshaft position sensor error, unburned fuel odor, and a timing marks mismatch. The user suspects a stretched timing chain may have caused the timing to misalign, as the camshaft marks do not match despite the exhaust shaft being set correctly. Various responses suggest checking the timing chain for wear, verifying the entire wiring harness for faults, and measuring cylinder pressures to assess potential valve damage. Ultimately, the user resolved the issue by replacing the worn shaft and cleaning the solenoid valve controlling the variable timing phase, confirming that the extended chain was the primary cause of the problem.
Summary generated by the language model.
ADVERTISEMENT