ToyoII

Yep, that was it. The reason I said no fuses where gone, was I did a check and none looked blown. That fuse however was blown, but it blew right on the side, so from a quick observation looked in good nick. Thank you very much for your help, it saved me stripping the car down looking for a problem that wasn't there. Well it did blow for a reason, but that is for another day. Cheers.

Hello everyone, None of my lights are currently working, appart from my main beams, they come on when I go to switch my dipped beam on and will not switch off, unless I switch to side lights or off altogether. The indicators, interior and brakes work fine, just my side lights, dipped and dash lights do not work. I have done some modifications of late stripping the car of interior appart from dash. I believe that I might have disconnected something on the lighting circuit and left it and it is shorting on the body causing the lighting circuit to stay off. No fuses are blown, checked that already. I think the reason the mains come on instead of dip beam is a fail safe if your lighting circuit fails to get you home, lighting limp mode if you will. I have checked around where I've been tinkering and I cant see any obvious shorts, but maybe someone else has done something in the past and had a simplar fault? The only things I believe i've touched on this circuit are: Light in ashtray, cigurette illumination, clock illumination, glove box illumination. I cant for the life of me think of anything else on this circuit in the car. All I've done is changed the seats / carpet / removed trim / seat belts / removed stereo, glovebox. I'm genuinely stuck, so any help would be most appreciated. Everything else works on the car perfectly, runs like a Nissan dream.

Yeah it was a great meet, good variety, my favorite saw the Skyline Ute, that was awesome. I met the other SWB owner, nice guy, very good condition Z, but forgot to ask if he was on the forum. Didn't meet any other Z owners there though, must have missed you. Glad I left at 9 then, if it got a bit silly after dark.

Yes I checked the fuse first, it's fine. The lights on the switches light up just fine, so I don't think it is the control module either.

Ok, quite a simple one . . . so I thought. My heater blower suddenly stopped working one day. It's not the motor unit itself, that works, as i've put in a temporary switch so i can still de-fog my windscreen. I've had a good look in the manual and it suggests, from process of elimination, that it's the relay. Is that a common problem or is it more likely something else? Any ideas?

I should be there between 7-9pm sometime.

Ok, thanks.

I know a lot of the stuff from the lwb and swb are compatible, but does anyone know if the rear bumpers are?

I've just got my car to start. Once I got another PTU, it didn't start, so I used electrical contact cleaner on as many units and harnesses as I could easily get to. Gave them all a very good clean and it started on the first crank. :laugh: So for you it may be as simple as giving all the relevant connections a ruddy good clean, because corrosion on the terminals can stop these cars dead in their tracks.

Just to sum this up for everyone, because lots of Error 21 codes are not resolved on previous forum posts: I received my 2nd replacement PTU, fitted it and it didn't start. I then disconnected the battery overnight to reset the ECU. Then I got some contact cleaner in the morning and scrubbed the PTU/Harness, CAS/Harness, TPS/Harness and it started on the first crank. :laugh: I haven't as yet checked my error codes.

Well if your truly stumped then there's always zedworld. If I can't fix mine soon, it'll be going there :blink:

I have a code 21 at the moment. From what I understand, Spark issues can be down to: PTU, coilpack, CAS, ECU. Fuel issues are down to: Fuel pump (pressure), CAS, ECU. So if you have both, then I guess it's either CAS or ECU, or both.

Are you getting any spark?

I did a ECU diag and I got error 21 (ignition signal circuit). Apparently if the Earths are not done up or are poorly connected it can fry a PTU and this error is thrown up. My replacement PTU I tried before discovering the earth problem so maybe I fried a 2nd PTU?

The grounding point is F11, this earth 3 devices: 1) Air Regulator (F7) 2) ECCS (F1) 3) Air flow meter (F29) Ive checked all the fuses and nothing is blown. I believe that the MAF and the AR wouldn't effect the ignition so have I taken out my ECCS. If so would that stop fueling as well? Because I have air and fuel just no spark. Also swapped the PTU over with no luck. Is there a way of testing components with a multimeter to see functionality, like how would I test to see if my CAS is working correctly?

Ok, I put my hands up, I made a mistake, I have found the cause, but not the problem. The cause was there are two earth points in the efi harness that connect near the #6 cylinder that were not connected. They were probably resting against the plenum, hence the car starting ok, but when I came round to removing the #6 plug of the coil pack I must have disturbed them they lost the connection and the car stalled. They are now connected correctly but the car does not start. I am assuming with a blunder like that I probably have blown a fuse or damaged a unit. Any idea what fuse it is likely to be and where it is located on the car? Or what unit may be affected by those earth points.

Ok, I've checked the PTU connections, they look good, no corrosion at all. I've cleaned all the coil pack connectors already, so I don't think it would be that. If the PTU comes up as a dead end. I'll move to the CAS unit. But I'll check the connections now. Thanks.

Well i've ordered a 2nd hand one off ebay, so I'll fit that when it arrives and see if it starts :blink:

Yes that's what I'd read. So I got Mr Green Flag man down, he had a good look and I have air, I have fuel, I don't have spark . . . from any of the cylinders. So if one cylinder was not firing I'd say coilpack has died, but as no cylinders are sparking surely that is a blown PTU? Does the PTU come up on the ECU diagnostic tests?

So I took the car for it's first proper test drive after the turbo's have been done. I was driving it home, everything was running fine. Then on the motorway I noticed that the car wasn't feeling right, like it's missing on one of the cylinders. So I got it home gently, parked on the drive and popped the bonnet. I thought I'd find out which cylinder it was by removing the coil pack connector one by one to see when one made no difference. I got them all off and they all were working, as i went to put the last one back on the engine died. And now will not re-start. When I go to start it it turns over, I can smell fuel after doing it for a little while, so I'm guessing its a spark issue. But all the sparks at the same time? Surely that would be a PTU fault? I am still running the series 1. Has anyone else had these symptoms or a PTU failure of similar consequence? When I get time, ill get a coilpack and sparkplug out to check it's actually not sparking, or is there an easier way?

http://www.ebay.co.uk/itm/1507486892...#ht_730wt_1110 These are the ones I've bought from ebay, haven't fitted them yet, but they look ok.

I love you Vodkashots!!! It's all running now, I just re did the neg terminal, used some copper grease too, and she lit up first time :laugh: Now just gotta put the bumper back on and I'm done!

Ok, well that will be the first thing I try tomorrow. I really do hope it is. It would be a wonderfully simple fix. :laugh:

When I first when to start the car I put the ignition on and all the dash lights came up as normal, then I turned the key further to start the car and I heard a quiet click, then all the lights went out and I have no power to anything, i.e no lights, no power locks, no radio, nothing. The battery was still charged and I will check the cables on the terminals tomorrow. I'll also check all the fused as well to see which one has blown. My concern is if I just replace a blown fuse with a new one, it may just blow again. Not solving the cause, but finding which fuse is gone may help to identify the problem.

So finished everything off, then double checked it. Went to start the car and click noise and now no power, probably blow something, like a fuse, because I connected something up wrong. Any ideas would be greatly appreciated thanks. :crying: