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-   -   SAI pump relay- Which one is it??? (https://landroverforums.com/forum/discovery-ii-18/sai-pump-relay-one-61928/)

floundering Sep 19, 2013 01:38 PM
SAI pump relay- Which one is it???
 
From the RAVE...

"With a warm engine which is switched off and the SAI pump relay removed, the SAI pump can be supplied with power
by bridging terminals 87 and 30 at the relay socket."

RAVE talks of R9 (main relay) in the engine fuse box but that relay has different terminal numbers.


Codes P1412 and P1415
Checked all vacuum connections- all are snug. I want to make sure the pump is working correctly.


wilson96rr Sep 20, 2013 05:55 AM
Are you sure that you have SAI? I have never seen a Disco before 2002 that had that option. I'm not saying it is impossible, but it would be unusual.

floundering Sep 20, 2013 09:13 AM
Originally Posted by wilson96rr (Post 421603)
Are you sure that you have SAI? I have never seen a Disco before 2002 that had that option. I'm not saying it is impossible, but it would be unusual.
Pump on the firewall by the inertia switch, 2 metal control valves either side of engine, vacuum reservoir...it's all there. Per the rave (pg239-240) the SAI pump relay is R6 engine fuse box. The terminals on that relay are 1,2,3,5. NOT the 87,30 etc. So I would jump terminals 3 and 5 on relay 6 correct???

jafir Sep 20, 2013 09:43 AM
Originally Posted by wilson96rr (Post 421603)
Are you sure that you have SAI? I have never seen a Disco before 2002 that had that option. I'm not saying it is impossible, but it would be unusual.
Lots of 2000-2002 have it, especially if they came from Kalifornia.

jafir Sep 20, 2013 09:44 AM
Originally Posted by floundering (Post 421652)
Pump on the firewall by the inertia switch, 2 metal control valves either side of engine, vacuum reservoir...it's all there. Per the rave (pg239-240) the SAI pump relay is R6 engine fuse box. The terminals on that relay are 1,2,3,5. NOT the 87,30 etc. So I would jump terminals 3 and 5 on relay 6 correct???
It's the glow plug relay. I "borrowed" it on my 2003, thinking I don't have glow plugs, and my SAI stopped running and I started getting codes.

floundering Sep 20, 2013 10:57 AM
Originally Posted by jafir (Post 421660)
It's the glow plug relay. I "borrowed" it on my 2003, thinking I don't have glow plugs, and my SAI stopped running and I started getting codes.

Yup, that's why I glanced over it at first. But I need to jump that relay slot to see if the pump turns on. Terminals 3 and 5. Just need someone to verify.

mackendw Jan 23, 2024 11:19 AM
do you recall which of the relay #6 connector blades that you jumpered to test your SAI Pump? My relay #6 has them numbered 1, 2, 3 and 5 also. Appreciate your feedback.

floundering Jan 24, 2024 08:24 AM
Originally Posted by mackendw (Post 888401)
do you recall which of the relay #6 connector blades that you jumpered to test your SAI Pump? My relay #6 has them numbered 1, 2, 3 and 5 also. Appreciate your feedback.
Should be 3 and 5
https://cimg1.ibsrv.net/gimg/landrov...53562cacb7.jpg


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