Freelander 1 Rebuilt motor, no fuel pressure

itsinthehole · Dec 21, 2020

Have a 2005 freelander kv6 that has been rebuilt, and a squirt of starting fluid starts motor but i am not getting any fuel pressure. Checked fuel pump relay, fuse and new fuel pump.I am wondering if there is a reset process for the ECM ? Inertia switch?

freelance · Dec 21, 2020

Probably the impact switch, it will be on the bulkhead

Jayridium · Dec 21, 2020

In the engine bay, on the bulkhead at the left side of the vehicle there will be a push button sort of underneath the fuseboxes / ecu box on the left inner wing, simply push it down to reset it.

itsinthehole · Dec 21, 2020

itsinthehole said:
Have a 2005 freelander kv6 that has been rebuilt, and a squirt of starting fluid starts motor but i am not getting any fuel pressure. Checked fuel pump relay, fuse and new fuel pump.I am wondering if there is a reset process for the ECM ? Inertia switch?

Yes I did check that as the latest test, pressed it once and felt it click or reset and still not getting fuel pressure. I think there is more of a process to it.

Nodge68 · Dec 22, 2020

The ECU triggers the fuel pump relay, so the first place to start looking is the fuel pump relay.
I've marked it with a red dot in this diagram.

itsinthehole · Apr 15, 2021

Nodge68 said:
The ECU triggers the fuel pump relay, so the first place to start looking is the fuel pump relay.
I've marked it with a red dot in this diagram. View attachment 225723

I want to thank you for your response, I have fixed that issue and now have fuel. The engine starts and runs and put on a code reader. I get p0304 and p0306 which is misfire of 4 and 6 cylinder. One more code is p1300. I am curious which to clear first and how, I did a switch of the coil packs 4and 6 to 1and 3 to eliminate the coil packs as the problem and it still shows up as 4 and 6 misfire. By my measure this would make it upstream from coil pack and be the harnesses of 4 and 6 ?

Nodge68 · Apr 16, 2021

Have you done a compression check on 4 and 6? They are adjacent, so could have a leaking HG between the cylinders.
The ECU monitors the coils, so will flag an open or shorted coil supply.
The ECU monitors the power pulse via the crank position sensor feedback, so it knows which cylinders aren't able to maintain engine speed, so flags a misfire code for the non contributing cylinders.

I'd do a compression test as the first test.

itsinthehole · Apr 16, 2021

66

Nodge68 said:
Have you done a compression check on 4 and 6? They are adjacent, so could have a leaking HG between the cylinders.
The ECU monitors the coils, so will flag an open or shorted coil supply.
The ECU monitors the power pulse via the crank position sensor feedback, so it knows which cylinders aren't able to maintain engine speed, so flags a misfire code for the non contributing cylinders.

I'd do a compression test as the first test.

Yes that is what i did do and all are at 190
the connector to #4 is not locking in with a click like the others and is it possible that the injectors cause this?

Nodge68 · Apr 16, 2021

itsinthehole said:
66

Yes that is what i did do and all are at 190
the connector to #4 is not locking in with a click like the others and is it possible that the injectors cause this?

190 PSI? seems pretty high, but them being all the similar is more important.

If the coil connector wasn't connecting, there would be a relative code, for open or short circuit. No code means the ECU is seeing the coil, which normally means the connector is ok. You can pull the plug lead off, and check for spark, obviously making sure you're not touring the HT leads or coil, as it produces a very high voltage.

Is it possible the injectors got damaged or contaminated when the engine work was done?

itsinthehole · Apr 17, 2021

Yes it is possible, the codes i am reading are P1300 P0304 P0306

Nodge68 · Apr 17, 2021

itsinthehole said:
Yes it is possible, the codes i am reading are P1300 P0304 P0306

P1300 is a misfire in multiple cylinders. P0304 and P0306 are for cylinders 4 and 6.

Are the plugs and leads good? Are the plugs leads to 4 and 6 the correct way round? i.e. not reversed?
How is the fuel pressure?

Freelander 1 Rebuilt motor, no fuel pressure

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