Fault Code Meaning

[XR6TD]

Need some help with my car and thoughts/opinions on what could be going wrong.

The car is standard 03 BA with rear muffler removed. I have begun to notice a power loss on boost at speeds normally above 80km at high rev ranges. The car is now boosting from the stock 5PSI to 10-11PSI. However when it hits this boost level at speed the car seems to lose all power from that point and will not accelerate any further (it feels as though the rev limiter is coming on too soon). Otherwise the car drives normally under normal driving.

I have taken the car to Ford to have the problem diagnosed - the mechanic took the car for a drive and has apparently never come across the problem before. He then checked the car and diagnosed several faults saying that all could be caused by the following/preceeding fault that was listed. One major fault code that came up was 1677 - Wastegate fault (over- pressure). The mechanic went on to say that the actual problem could be difficult to locate and suggested I provide a limit on the amount I wanted to spend to get the problem repaired - he gave no indication on what the problem could be.

Any ideas on what the problem may be, before I spend money replacing things that COULD be the cause.

Cheers

[tab]

In simple terms it sounds like your wastegate is fcked and unable to control boost, thus causing it to overboost and then your engine going in to limp mode as a self-preservation strategy.

Where abouts are you...someone should be able to recommend a decent tuner/mechanic that can diagnose properly and sort your problem for allot less in beer tokens than your friendly Ford dealer.

[Ralph Wiggum]

The PCM will throw a wastegate over pressure fault if it cannot control boost. Could be as simple as the boost pressure hose missing from the actuator to a jammed actuator (unlikely) as Tab sad get it checked out by somebody who isnt going to throw darts to diagnose the fault

[XRTFG6]

I had a similar problem a while back it turned out to be a cracked hose that's onto of the throttle body (my car is an fg)

Hope this helps

[XR6TD]

I have read a bit of info on here about possible causes and will try a few fixes myself however if the problem persists I will have to get it repaired by a mechanic.

I am in cairns so it may be a little difficult finding a decent mechanic/tuner to look at it for me. Any suggestions in or around Cairns guys.

[F6_hoff]

What does it mean when ETC comes up? my BF F6 ute has had it come up twice in the past 2 weeks, it sends the car into limp mode. I pull over and turn the car off and turn it back on again and its fine. Any thoughts?