Yes most likely a vehicle goes into limp mode up failure of MAFS unplug the sensor and see if you have any better performance getting it to the shop
Testimonial: "Got worce died when pulled wires off from maf sensor now coding 1643 after i pluged it back in maf censor back in obviously I need to find codes for this model car lol"
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If you are in Limp Mode, the scan tool will tell you why?
If the battery light is flashing on and off, you have a battery issue, a wiring issue or you have an alternator charging issue.
All your faults can be diagnosed cheaply by an auto electrician using a Professional Grade Scan Tool COMPUTER. This is not a normal $125 scan tool. They cost between $3.5k and $5,000. Employing an electrician in far cheaper than guessing parts to swap out, test always, then replace.
code p 0171 refers to system too lean bank 1== causes --intake /exhaust leak---AIR system---MAF/VAF sensor ---fuel pressure/pump--- injectors--- Heated oxygen sensor
by changing the O sensor (oxygen sensor ) you changed the wrong one and so there would be no change to the read out there
code p 2173 refers to throttle actuator control (TAC) system -high air flow detected ===causes --intake system---throttle body
fix the causes and you stand a chance of fixing the problem
the limp mode is also activated by problem sensors in the transmission. Have the fault codes read again or have the system reset after replacing the faulty items.
code p0238 refers to manifold absolute pressure (MAP) sensor A TC system --high input===causes --wiring short to positive --MAP sensor---ECM
Replace the sensor (internal fault)
code p0102 refers to mass air flow (MAF) sensor /volume air flow (MAV) sensor --low input ===causes wiring short to ground ---MAF/VAF sensor
again the MAF is implicated as faulty
code po113 refers to intake air temperature (IAT) sensor--circuit malfunction===causes --wiring open circuit/short to positive --wiring short to ground --ground wire defective---IAT sensor---ECM
Now looking at all the codes the most common fault is wiring damaged so pay particular to the condition of the wiring loom --the condition of the connections --clean pins - pins not bent --water in the connections . IT is common that when disconnecting the units that the connection is pulled apart by pulling on the wires .. This check is the cheapest before any money is spent on the rest . Do not clean but replace because if cleaning does not produce a result you still do not know if you cleaned it properly or if it is faulty
code p1155 refers to electronic throttle system (ETS)- malfunction===causes --wiring--ETS limp home valve
code p1193 refers to ETS -limp home valve --on===causes --Low RPM
code p0302 refers to cylinder 2 misfire detected===causes--engine mechanical fault--wiring---ignition/ fuel system---injector---ECT/MAF sensor---ECM.
Pulling a battery lead to reset is a waste of time as it corrupts the CPU program. Use a code reader to reset . It is quicker and doesn't run the risk of program corruption
jaguar x-type 2ltr diesel 2004 the glow plug warning light flashing, was told dirty fuel on fault code all fuel changed and filters. No problems for 20 miles untill engine was put under power on high revs went into limp mode, warning light glow plug falshing again? any ideas thanks.
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