Question about Cars & Trucks
Code D2181 comes on, checked fluid level topped off cleared code. 2 months later same code tightened gas cap light out. 6 months later light again, replaced switch, cleared code. 6 months later again D2181. No other symptoms runs fine good mileage easy start. Whats next?
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Posted on Jan 02, 2017
The P0141 code points to the O2 sensor heater circuit. It could be that there is a short in the wiring to the O2 sensor or it could be that the O2 sensor heating element itself is bad. The code is for O2 sensor Bank 1 Sensor 2. Bank 1 means its the O2 sensor connected to the exhaust pipe that runs to cylinder #1. Sensor 2 means that it is likely the O2 sensor after the catalytic converter on the same exhaust pipe.
Posted on Dec 31, 2008
There is a VSV (vacuum switching valve) , usually mounted on the back side of engine block, under the intake manifold, as well as the map sensor, that can also cause that code if one or the other is faulty. It takes some pretty detailed troubleshooting to confirm this in some cases, so if that's not in your line of work, you may have to have it properly diagnosed, or take a 50/50 shot at which one first.
Posted on Jan 24, 2009
there are alot of components that can throw those codes.... as a test pull one wire from the coil pack and note if the engine idle changes... replace it and move to the next one... repeat that for all cyclinders.... if you pull one and there are no changes you have likely located the cause.
Posted on Feb 23, 2009
P0411 Secondary Air Injection System Incorrect Flow Detected
The 4mm inside diameter vaccuum hose gets pinched between the lower intake manifold and the secondary air pump housing, flattening it over time.
Here's a link to the steps to fix yourself if you are mechanically inclined...
P1128 Long Term Fuel Trim Is Too Lean
It is very likely this code is coming up because of the vacuum hose as well.
Posted on Oct 20, 2009
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