Hey, im doing some research so i can help my buddy with h...

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cin all reality i need to know whether or not the limp mode was a product of the debris that may have hit his car.

Hi c I hope you are well . The first thing you will need is a diagnostic scan tool to access and retrieve faults . The epc warning is very unlikely to be caused by the debris and is likely a coincidence

With it being a vw it wouldn't surprise me if the cracked windshield led to it. but somethings giving me the idea that it has something to do with either steering or brakes going on a limb. i havent driven the car but was told it went limp mode right after the road incident.

Ok so the EPC warning light, also known as the Electronic Power Control warning light, is a typically caused by systems relating to the throttle and accelerator control

for this model its also hooked into steering and the brakeing control as it could injure the car or driver. but it seems those 2 are ok. so im thinking it could be a sensor with any of the equipment. its the throttle by cable or electronic?

Fully electronic

sweet. so if the throttle body isnt opening an d closing properly and the car is going into limp mode wouldnt it be backfireing because the fuel to air ratio is shot?

but throttle related can be anything that effects throttle reliability so anything from the throttle body , throttle pedal , wiring , ecm , vac leaks , misfire etc

now from what i understand the cruise control could also be an issue?

It can indeed because it obviously needs to have an accurate throttle to control

now, he saying after it happened he got a engine fault workshop notification as well

The two will come on together

Where are the vacuum lines that might be in question

Vac reference is within the intake system in general .

there wouldnt be a line thats squeezed and kinked up?

No I'm more referring to intake leaks that would effect the air balance in the engine

Gotcha

If you let me know when you have read the faults from car and i can assist further

I feel it could be more a sensor issue. I dont believe there was an issue with misfire, fuel air ratio. Or anything elseWill do

I agree its likely a sensor issue somewhere

Going throught the sensors we checked the mass air flow censor and cleaned it off. Seems to be ok now but we are still gonna get codes check incase there are other issues

ok perfect let me know the codes when you have them

Has no more engine codes so im assuming it was just the mass flow sensor needed cleaning

Its possible .drive and see if the issue reoccurrs

Yea we have. It seems it had gone away

Perfect a nice easy fix

YessitYessir

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