Ford Ranger power train light and limp mode
Ford Ranger power train light and limp mode
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jambolina

Original Poster:

3 posts

41 months

Wednesday 10th May 2023
quotequote all
Hello guys,

Trying to get a second opinion on some mechanical issues I've been having with my Ford ranger wild track 2017.

About a week ago, I began experiencing a loss power where the engine would briefly cut out or engine surges/jerky acceleration, usually within 15 minutes of starting to drive. After this happens, the computer kicks in, switches on the orange power train light and enables limp home mode.

The fault codes are:
P02ED-00 diesel intake control system - low airflow detected
P02EC-00 diesel intake control system - high airflow detected

I thought it was odd that the car was complaing of high airflow AND low airflow so I thought it was most likely a sensor issue. I removed the mass airflow sensor, gave it a clean with electrical contact cleaner and then replaced it. This seemed to solved the issue for a time, I managed to drive it for a few days without the issue occuring.

However last night, the issue occured again, happening only once after about an hours drive. Since the issue was occuring quickly and consistently before, and has now only happened once in a longer period of time, I suspect that the mass air flow sensor is still the culprit and I'm thinking of now buying a new sensor.

Do you guys agree that the next step is too completely replace the mass airflow sensor, or could there be another issue at play?

Appreciate your help, thanks a lot.

gamefreaks

2,067 posts

217 months

Wednesday 10th May 2023
quotequote all
MAF sensor sounds possible.

Can you set up data logging from your OBD2 tool, go for a drive and then you might be able to catch it red-handed.

If the data shows huge spikes/flatlines in the data then you know its either the wiring/connectors or the sensor.

Wire waggle test should rule in/out wiring fault....

jambolina

Original Poster:

3 posts

41 months

Wednesday 10th May 2023
quotequote all
gamefreaks said:
MAF sensor sounds possible.

Can you set up data logging from your OBD2 tool, go for a drive and then you might be able to catch it red-handed.

If the data shows huge spikes/flatlines in the data then you know its either the wiring/connectors or the sensor.

Wire waggle test should rule in/out wiring fault....
Thanks gamefreak, very helpful I'll see if I can get that done this weekend.

If I do go down the new sensor route, is there any brand you could recommend? I'm seeing quite alot around the £60 price point and then Bosch at £120.

Scrump

23,940 posts

188 months

Wednesday 10th May 2023
quotequote all
Do not buy a cheap unbranded MAF sensor, false economy.
Pay the money and get a Bosch one and make sure it is from a reputable supplier so you know it is genuine Bosch.

What happens if you unplug the MAF sensor and go for a drive?

jambolina

Original Poster:

3 posts

41 months

Wednesday 10th May 2023
quotequote all
Scrump said:
Do not buy a cheap unbranded MAF sensor, false economy.
Pay the money and get a Bosch one and make sure it is from a reputable supplier so you know it is genuine Bosch.

What happens if you unplug the MAF sensor and go for a drive?
Noted, I'll go for the Bosch, thanks.

When starting the car with the sensor disconnected, car starts fine but orange power train light immediately comes on and limp mode enabled.

When disconnecting the sensor after the car is started, engine remains running but as before orange power train light comes on and limp mode is enabled.