Posts: 18,242
Threads: 386
Joined: Dec 2011
Reputation:
87
Location: Suffolk
Car Model/Spec: Focus Titanium
Lol... Somethings wrong with those codes, you cant possibly have so many things broken at once surely!! Clear them all and see which ones come back. Only thing that could cause all that is a loom problem. Or possibly the ECU plug.
P0230 is fuel system (primary)
P0200 is injector circuit
P0190 is fuel rail pressure circuit
P0220 is throttle position sensor circuit(B)
P0120 is throttle position sensor circuit(A)
Posts: 31
Threads: 3
Joined: Jan 2014
They wouldn't clear. Or they would clear and come back on as soon as ignition turned on. Could it be the brown relay???
Posts: 18,242
Threads: 386
Joined: Dec 2011
Reputation:
87
Location: Suffolk
Car Model/Spec: Focus Titanium
25-01-2014, 04:35 PM
(This post was last modified: 25-01-2014, 04:36 PM by Toms306.)
The brown relay could cause some of those faults, but not the TPS or injector faults afaik.
Is the TPS even plugged in? It won't stop it starting but I'd be surprised if both circuits for it broke together, which is partly why I'm guessing at a wiring fault.
Posts: 31
Threads: 3
Joined: Jan 2014
Yeah pluged in. Wiring is a bit of a mess though looks like its been off before. Is the loom an easy job?
Posts: 10,864
Threads: 117
Joined: Dec 2011
Reputation:
119
Location: Southampton
Car Model/Spec: 306 HDi and friends
Could be bad earths, give them all a damn good clean and check them for continuity. If they're all good i'd start looking at the rest of the loom, the link in my sig should tell you most of the expected readings for the various sensors.
Posts: 31
Threads: 3
Joined: Jan 2014
26-01-2014, 06:16 PM
(This post was last modified: 26-01-2014, 06:21 PM by George.)
Id already ordered a brown relay and its not that or the fuel pressure sensor in rail.
How do I check the earth's? Where are they?
Posts: 10,864
Threads: 117
Joined: Dec 2011
Reputation:
119
Location: Southampton
Car Model/Spec: 306 HDi and friends
Earths are on the gearbox, chassis (other end of big battery negative cable) and block. If you get a multimeter and place one needle on the earth point and one on the correct pin in the plugs for the tps and frps. While you're there i'd check the maf and the connections between the injectors and the ecu too.
Posts: 31
Threads: 3
Joined: Jan 2014
Just realised I have no battery light with ignition on? Also on first crank the handbrake light comes on dim?
Posts: 10,864
Threads: 117
Joined: Dec 2011
Reputation:
119
Location: Southampton
Car Model/Spec: 306 HDi and friends
When you went to see it before buying, was it completely cold or had the owner been out in it that day?
Posts: 31
Threads: 3
Joined: Jan 2014
Posts: 31
Threads: 3
Joined: Jan 2014
So all the earths check out ok
Posts: 10,864
Threads: 117
Joined: Dec 2011
Reputation:
119
Location: Southampton
Car Model/Spec: 306 HDi and friends
Did you check your main earths too? No battery light with ignition indicates a fault with your charging circuit or a bad earth. Or possibly an issue with your ignition switch, but if everything else is lighting up ok i don't think it can be that. Would be worth checking the relevant fuse and that the bulb hasn't blown.
Failing that, you may have to get an auto-electrician out, i'm still a bit out of my depth with chasing electrical faults.
Posts: 31
Threads: 3
Joined: Jan 2014
I have had another look at car today. Putting the multi meter on injector wiring and one probe to earth I get 6/7 volts with just ignition on. Couldn't get a reading from the rail pressure sensor though. Probably me. Have battery light back fuse 28 had blown