Q: Advice what to check or replace.

asked by on

Car was bought 2 months ago by friend as working away, get in car and engine light on and when hard accelarating it gets bad hesitation when reaching high revs with max limit of 5200, took to garage for smoke test results were rocker gaskets a+b banks, inlet manifold gaskets and secondary hose under inlet manifold and also to get them done as o2 sensor wernt reading properly. So i decided to tackle them myself and changed all including spark plugs and tube and oil and filter and also ccv valves, the car runs alot better now but on start up code p3019 shows up and when under heavy accelaration the engine still hesitates and jerks and still top rev to 5200 even in neutral but code appears p0370 high reolution, and not often but miss fire in cylinder no5. Swapped coil 5 and 6 over but still shows 5 missing, i have run live data tests over weekend and im finding bank 2 o2 sensor wont close loop due to system failure when warm and fuel trim drops to zero and 02 reads .1v, is this 5 injector

My car has 106000 miles.
My car has a manual transmission.

Hello.

The code P0370 is an indicator that your vehicle’s timing reference optical sensor is having an issue. This signal that this sensor provides for the computer is very important to the overall engine performance of the vehicle, especially at high rpm.

I would recommend having the optical, crank, and cam angle or position sensors checked to see if they are in proper working order. If those are okay then I would proceed to testing the computer.

If you feel like you need some assistance with getting this fixed, enlist a qualified mechanic who will go through the necessary steps to accurately diagnose your Check Engine Light. Once this is done, an accurate repair can be made to get this car running smoothly again.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Advice what to check or replace.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car hesitates sometimes when I accelerate and wants to stall

Hesitation and stalling can be caused by a wide variety of issues, most of them relatively minor to repair. A few common causes are problems with the fuel, ignition, or engine management systems. If one of the components to these...

Q: i have 3 code on my car P0431, P0174, P0305

Noise in exhaust systems occurs due to leaks as well as internal failure of the baffles in the muffler or resonator. So, just because there are no leaks, doesn't mean the exhaust system will be noise free. An [engine/exhaust noise...

Q: Automatic transmission issues 2001 BMW X5

Hello - I would first check the wiring connector at the transmission for good contact and secure connection, and fuses for the transmission controller. It is possible that an internal speed sensor in the transmission has failed. I would recommend...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.