I have battery voltage at TPS -- Temp pressure sensor --- Engine coolant sensor --- MAF sensor at the Red/black wire for each sensor.. This voltage disappears if I diconnect the cam sensor....which also has the same Red/black wire.... Please help me diagnose by providing a wiring diagram of camshaft sensor to determine what values should be at each wire. Vehicle starts but runs super rich... With high idle... With no check engine lite..
Thanks in Advance for any help!!!

 

there have been quite a few of these "advanced evap" vehicles with this issue, some of us have found that the culprit is the fuel tank pressure sensor ( or the wiring to it ) ..it shares the same voltage feed as the tps,and the iacv.... iirc....and any fault in THAT circuit will mess with the fuel ratio/ delivery. roll up the carpet in back to get acccess to the fuel pump and unplug the sensor on he top of the pump assy....my truck INSTANTLY ran normal after the unplug

 

check out post #3 in this thread.

the entire thread is likely to save you many many hours of anguish.

Welcome to the club.

https://landroverforums.com/forum/di...02/#post581013

 

Thanks for the speedy response,,,, Unfortunately this did'nt work....Only when we disconnect the camshaft sensor connector does the battery voltage leave the other sensors connectors,,,,, tps,,, iac... maf...etc... I have no luck so far in gettng a wiring diagram to determine where the wires go or their values......

 

2nd try...

Click on this link. Follow the link in that post. Download the electrical trouble shooting manual. Read diagram.

https://landroverforums.com/forum/di...02/#post536729

Bookmark that thread because if you own a D1 there is no better source of information anywhere else on the interwebs.

 

**** The fix was ,,, The problem was the R/B wire should have been system ground and the ground integrity was not good!!!!

 

This 1998 Land Rover 4.0 engine will not idle under 1100 rpm and all sensors are reading within specs.... Any ideas ?

 

I was unable to open to read..... Also I tried downloading a link that you posted for a wiring diagram of ECM pin-out..... Really appreciate if you have other resources to send... Thanks in advance......

 

I was unable to open to read..... Also I tried downloading a link that you posted for a wiring diagram of ECM pin-out..... Really appreciate if you have other resources to send... Thanks in advance......

 

Could not open link,,,,, is there another way for me to get these diagrams or information. Really appreciate your help..... On another post I open & downloaded electrical information, but it only had flow charts & no wiring diagrams..... Thanks again,,,