Just cleaned, new gasket and reset adaptive values. Idles fine when started from cold. Idles low - stalls when warm unless you rev it, then idles fine.

Hi All Just had my local indy fit one to my 1996 4.6 HSE. I would have done it myself but forgot I needed new hangers welded on the passenger side to accommodate the rear which had not existed on that side before now. So I decided to get it all done for me. They did a great job as always...

Interestingly enough, the original issue I had (and have had for months) is actually still there after all this work. That is, once the engine has run long enough to warm up (not even to operating temp, so still just in the blue zone) if you switch off (for instance to pump fuel), when you...

OK guys, sorry for the delay. I have been away and also hunting a TPS. So, its fixed. Second hand TPS fitted properly so that its not under excess tension from the springs. New gasket on the IACV. Adjusted throttle springs to make sure its closes the throttle fully, but not with any large...

Checked the plenum and the rocker breathers which are brand new, no visible leaks. The clamps either end of the large induction hose are tight. Some data prior to reset (engine not running): TPS Close Throttle Value =0.045 Fuel Flow Rate =0.092 Air Flow Rate =2.1166666 Short Term Idle =0 Long...

Same, idle then touch gas and it dies. Looking for a TPS to replace mine as mine is damaged for sure. Whether it is causing the problem is unknown. In my view the TPS should see the throttle open and tell the ECU to pulse more fuel in through the injectors. If that does not happen it will...

Progress update. But first thanks for your replies and help guys. I have reset all the adaptive values using GEMS Lite, an utterly excellent Android app. Now my idle speed is bang on 700 plus minus 50 or so, smoother than its been in ages. Not sure if the warm start problem is fixed, but I did...

The initial problem of low idle/near stall was when hot only. It was fine starting from cold. Since I cleaned stuff up it seems to start hot or cold but the revs are high. I know this may be adaptive values, but what is causing the revs to die (almost entirely) when I open the throttle? Its...

Thanks for the reply, but the issue is not being able to drive now. As soon as you touch the throttle it dies. This is a new problem. I know there are 2 levels of adaptive values, the long term need to be reset with diags, but surely it will not stop it being driven? Thoughts?

Hi All I have had an issue on my 1996 4.6 GEMs engine running on petrol (not LPG). All is ok from cold, but starting from warm/hot causes the revs to drop so low it stalls. Touching the accelerator would stop the stall, but it would often miss a few beats until it settled down after a few...

Update. Found some time to get on with this at last. Fixed. Thanks to all of you for help. I think the motor must have just stuck. Once I checked the switch positions with a meter I worked out it was simply in the wrong pos when I bolted it back on the first time. Worth noting that the pic of...

This is great, I thought I was going mad for a moment. Although this does not rule out any madness, it does give me more to get going on. Cheers for that.

Under the passenger seat (RHD model) and I have 3 ECU modules. Transmission Air Suspension Transfer box - This is the one I am at the end of. There are 3 rows of pins in the connector. I am guessing transfer box ECU is where I should be as it would make sense. But I could be wrong. Cheers

Ok. Sorry to be a pain but I am very confused. My transfer box ECU (AMR5254) has a very different looking connector to that shown above. Where is the connector I need to read the values on? Thanks

Thanks yes it is starting to sink in. Will check tomorrow with any luck. Cheers

Ok I have found something here: http://www.exploringnh.com/tech/FSM/Electronic-Troubleshooting-Manual-RR-P38-eng.pdf Page B6. Still struggling to understand where the motor position is in relation to the selector.

Hi Any advance on this? To the OP....when you set the transfer motor to the required range manually using a 12V supply - how did you determine the correct ratio position? Did you use the 4 switches and read the open close status of each to determine correct position? As there is Left Stop -...

Yes that is correct. Weird stuff.

I am not sure what these positions are. Is it explained in Rave? The transfer box shaft moves to 2 positions only? I spun the motor with DC applied until it lined up with what looked to be the high position. That worked, except for the select neutral and that it will not come out of low. Not...

Right well it is broken again. Stuck in low. I selected low as suggested, it changed, all ok, went to move back to high and it is jammed. Same as original post. Total nightmare and getting frustrated. I cannot see how this is the switches as that surely only tells the ECU which range/gear...