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Old 29-11-2021, 05:37 PM   #1
Minerva
Starter Motor
 
Join Date: May 2018
Posts: 10
Default Mk1 02 Focus, Dash gauges dropping out and loss of power

G'day,

I recently purchased an 02 Focus for cheap with 148,000kms on the clock. No real issues when I test drove it but now I've had it for a few weeks I've noticed it's started playing up.

First it was rough starts but it would come good after a few minutes, now it's running rough all the time.

Changed plugs but it's the same, now today I was driving and the gauges kept dropping out constantly with the check engine light blinking on and off each time they dropped out?

Any ideas? Cheers
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Old 29-11-2021, 07:00 PM   #2
marg99
FF.Com.Au Hardcore
 
Join Date: Jul 2008
Location: Melbourne
Posts: 803
Default Re: Mk1 02 Focus, Dash gauges dropping out and loss of power

I would check the earthing points in the engine bay and hope its not the ECU dying
gauges suggest communication problem usually caused by poor earth.
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Old 05-05-2022, 12:26 PM   #3
Focmachine
Regular Member
 
Join Date: Jun 2020
Location: Hunter Valley
Posts: 31
Default Re: Mk1 02 Focus, Dash gauges dropping out and loss of power

Yes like Marg99 said, earths.
I have an issue where my temp and fuel gauges move after the car is off for a minute ST170 dash cluster).
I’m doing my clutch now and other work, the wiring could use some tlc, but I’ll clean the earth points before reassembly to try to fix it before I have the wiring checked, got some basic test tools but I’d rather get a professional.
A autoelec will save you time. A guy I used did his own tuning and was great at diagnosis.
I jammed my ECU up-loading software from a bluefin flash tune dongle.
I didn’t know the battery needed +12 volts when doing this. Bluefin in the UK didn’t support an old product and nothing online helped, after a week of futile research I called a company at Thornton NSW who had a workshop and mobile sparkys.
The car was running in 20 mins.
My plan otherwise was to get new computers with a new ECU tune.
Some wiring goes into deep dark recesses so they can use methods to diagnose that are easy.
Id definitely have a go at the earths, plenty of stuff on YouTube if you are unsure and there are safety/airbag precautions you need to take. (Unless you want to put on a cool Momo steering wheel and have a second glovebox where the passenger airbag used to be!)
Good luck, a decent Focus is worth the trouble.
Are you enjoying the handling/steering of the Focus LR?
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