Search results

I replaced that wire when swapping the barrel over. I was going to test running a switched earth to the relay later to see if it starts. I tested all the grey, black, red and white wires from the ecu to the relay area last night and they are all ok. Also tested the twisted purple and white wires.

Hi guys, bad news. didn't fix anything. I've narrowed the problem down to the switched earth not working from the ECU. I've checked all the earth pins going to the ecu and made sure the ecu is earthed. I've also tested the wire that goes from pin 9 to the fuel pump relay and it's fine. I've...

Lets hope it does!!

Thanks Joe

Is there any way to obtain a wiring diagram for these cars?

OK So after doing some more troubleshooting with a helper last night I found that moving the relay holder unit around made the engine keep cranking and at one point the fuel pump primed and it started. I've ordered a new fusebox with all new fuses and relays so I'll fit that tomorrow. Yes I...

Ok so it still has the same fault. Tried other batteries. Tested continuity between the ecu and crank sensor. Tested the Relays. No power to the coil. Also sometimes when cranking it cranks a few times and stops and sometimes it just keeps cranking

OK so update: I removed the white multi pin connector and soldered all of the wires. I also sanded down the terminals on the relays and used a load of contact cleaner on the fusebox terminals. It fired up straight away - didn't touch the battery. It's misfiring a bit but I need to change the...

I've got a drycell battery atm and I've also got a clio battery. Could you explain why charging it wouldn't work?

Yeah I'll do that this afternoon I'll charge the battery too.

yeah the engine loom includes the fuse box but there's that white multi plug it connects to the car loom with which is pretty crap. I've cleaned it up but could also be causing problems.

yeah no harm in buying a new one and running a new cable. I just want it to be reliable. It's so frustrating. It's a track only car so going to a track day and spending the day with a multimeter isn't a lot of fun.

thanks, yeah I've cleaned everything and even replaced the engine wiring loom. it's either a damaged cable or poor connection.

Yeah this morning I was thinking I'm going to replace the fuse box as it's old and chances are that's the cause of the problem. I've tried swapping out relays etc but it's not helped. I installed on of these in my kitcar and it's pretty good and at least everthing will be new...

Well unless it chooses when it wants to work I doubt it. There's a wiring fault but without a proper diagram I'm wasting my time. I've not voltage to the coil pack and that should be powered from the ignition relay. pin 85 on the ignition relay comes from the ecu but it's on 0v not 12v. No...

Hi guys OK so I'm now under the impression French wiring is a load of crap and they make it impossible to find a wiring diagram. I've read so many posts now with people with electrical problems and problems starting. My 172 sometimes starts and most of the time just cranks. I took my clio to...

Hi Guys, So finally had some time to take another look at the clio today and it appears there is definitely a wiring fault as moving the fuse box allowed it to crank over and not stop unlike what it was doing, cracking for a few turns and stopping. I think I need to find help on this one. Need...

OK So I went and re-tested this morning. Cyl 1 175 Cyl 2 185 Cyl 3 172 Cyl 4 175

Hi Steve, Thanks for the comments. What sort of pressure should I expect to get? It was the same on all 4 cylinders. There's no smoke that i've noticed. I'd like to buy the correct diagnostic tool so I've got something to hand, any ideas what the best option is? I was looking at getting an...

compression reads just over 150PSI on all cylinders. I don't know if it's firing at all but assume it's partically firing to be sooted up? It could well be the fuel on the lambda was from lots of cranking and not starting.

I also replaced the map sensor. No difference.

I've cleaned all the plugs with contact cleaner. Yeah it's #2 cylinder at fault as the plug is carboned up. Compression looks good on all cylinders.

Cleaned all the contacts on every plug and replaced the lambda sensors. Bit fed up now. Any ideas what I need to buy to be able to properly diagnose?

I'm going to go and clean up all of the contacts on the plugs and sensors as it could just be a poor connection...

Yes, and the fuel rail. It's not the leads, plugs, injectors or coil as i've changed all those.

I need to figure out why there is a misfire on number 2 cylinder. Can't see why there would be unless the ECU was causing it?

Agreed but the misfire is probably throwing the lambda sensor out as it's chucking fuel into the exhaust? It appears that even resetting the codes isn't the fix. I've tried swapping the ECU, UCH and key but it doesn't make any difference. I think it's clearly a sensor stopping it working so...

Ok so the only way to make it start is to check the codes, clear them and then it starts. No idea why that is, idea thoughts? And I've still got a misfire on cylinder 2. Its not plugs, leads, Injectors or coil as I've changed them.

UPDATE: IT'S WORKING!!!!! OK so after trying everything i remembered that I had a similar problem on a BMW e30 and I need to earth the ECU. My ECU isn't in the normal location. didn't fix it... So i sat in the car and decided to check the fault codes again... I then cleared the fault codes and...

Looking at this tread, i've also checked the following: http://www.cliosport.net/threads/ecu-power-voltages-red-light-solid-issues-lots-of-checks-already-carried-out.613803/ Earths - Pins 3,28,33 and 67 All fine continuity from UCH to ECU between Pins 27 (ecu) - Pin 20 (uch) all ok 57 (ecu) -...