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  1. What is the difference in radiators with and without SAI?

    Range Rover Mark II / P38
    Atlantic British shows two different parts for the Bosch radiators: PCC106850 - without SAI (Secondary Air Ingection) PCC108080 - with SAI Rock Auto shows the same part for both: NISSENS 64319A {#PCC106850, PCC108080} If somebody could please let me know what is the difference between the...
  2. Radiator differences SAI and non

    Range Rover Mark II / P38
    I need to replace the radiator on my 2000 P38 which has Secondary Air Injectors. Searches indicate that there are two types of radiators for the P38, with SAI and without. The price difference between the two is fairly significant and I cannot understand or locate any information as to why there...
  3. SAI code throws overnight/cold start

    Range Rover Mark II / P38
    Trying to get emissions done and I've been thwarted by the coveted P1412. It only throws that code from a cold start in the morning. This of course kills my drive cycle for emissions. I use an ultra gauge and once the code is cleared, no codes and no pending codes appear no matter how much...
  4. Removing SAI system; block off plates/bolts size for engine?

    Range Rover Mark II / P38
    In the process of removing the Secondary Air Injection System from a P38 2000 4.6. Does anyone know the correct bolt patter, or a source of block off plates for the engine near the plugs? (NO, it's not for 'on road use' anymore, NO, I don't have emissions testing in my area, NO, I don't care...
  5. P38 SAI Power Stage Fault

    Range Rover Mark II / P38
    Hi all, I have paid someone to sort out the issues i had with my rr but I am broke now and could use some help. Car was fine...no codes. SAI pump issue was a broken wire which the mechanic replaced leading from the relay to the little black box(ecu) on the driver's side firewall behind...
  6. P38 Secondary Air Injection Pump constantly on

    Range Rover Mark II / P38
    I have a 2001 P38A and the secondary air pump stays on long after the engine has been switched off, which causes the battery to drain (duh). I have removed the SAI pump and the vehicle seems to run fine (we are in FL, so emissions are not checked). I would like to fix the problem rather than...
  7. SAI ports in cylinder head

    Range Rover Mark II / P38
    I have a pair of heads from what must be a Thor engine, these are being fitted on to a GEMS engine Does anyone know what thread the SAI holes in the heads are (near the exhaust ports) so I can blank them off Regards
  8. SAI resistance?

    Range Rover Mark II / P38
    Does anyone have any experience with faking the resistance for the SAI pump.. Mine has been rusted solid since purchased and I would like to kill the fault messages. They are the only ones for now :lol:
  9. SAI smog pump and relay

    Range Rover Mark II / P38
    My SAI smog pump is not getting power and the diagnostic said its the relay but I changed it/them and no fix. I left it in the car and jumped it and it is fine. Is there anywhere I can slice it in to make it work with the car? Mark
  10. P38 with p1117 and p4018 codes combined, SAI pump issue

    Range Rover Mark II / P38
    Hi...I was hoping you could help out a newbie ( 2 weeks in) 2001 range rover Bosch North America with Secondary air system for emissions(SAI). date of build say 01-01 1. Codes p1117 secondary air bank a code and temp low code (p0418) combined 2. 12v jump to SAI pump (portable battery)...
  11. SAI Problems

    Range Rover Mark II / P38
    Hello everyone I've recently purchased this October, 1999 p38, and had a code for the sai not working properly (4112/4115 I believe) come up. I there is no power signal going to the pump at start up and the pump wont turn on. I have already changed the pump and the fusebox but still nothing. I...
  12. P1412 P1415. Pump works, new solenoid and valves

    Range Rover Mark II / P38
    As the title states, i have the p1412 and p1415 codes. I've changed the solenoid, both valves, installed new vacuum lines. When i start my p38, the sai pump turns on and runs for about a min. Seems to be working fine, but i still get the codes. I've searched and searched, and i dont know what...
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