Rough starting
I have 2009 fx4 with 128000 miles. First start of the day or after sitting awhile is very rough. It starts and you touch the gas and stalls. Mileage horrible at 10.4. Changed cop and plugs and rough starts continue and mileage dropped to 9.6. Then I get engine light. P0150 and p0130. I then took it to the garage and had the computer update. Rough starts still continue and no improvement on mileage. As a side note if it helps. Not even a year ago i was getting mid 14ish for mpg. What should I be looking at now? Thanks or any advice!
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From those codes and those symptoms; I would get your exhaust back pressure checked. You might have a clogged cat.
Or it could be an electrical issue with the wiring; grounding, infestation, or broken wires. |
https://www.obd-codes.com/p0130
https://www.obd-codes.com/p0150 Potential Symptoms Depending if the problem is intermittent or not, there may be no symptoms other than MIL (malfunction indicator lamp) illumination. If the problem is constant, then symptoms may include one or more of the following: MIL illumination Engine runs rough, missing or stumbling Blows black smoke from tail pipe Engine dies Poor fuel economy Causes Usually the cause of P0130/P0150 is a bad oxygen sensor, however this isn't always the case. If your o2 sensors haven't been replaced and they are old, it's a good bet that the sensor is the problem. But, It could be caused by any of the following: Water or corrosion in the connector Loose terminals in the connector Wiring burnt on exhaust components Open or short in the wiring due to rubbing on engine components Holes in exhaust allowing unmetered oxygen into exhaust system Unmetered vacuum leak at the engine Bad o2 sensor Bad PCM The articles cover troubleshooting. |
Thanks you for the info.
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