Wont Start, No Fuel, No Spark; New CPS, Rebuilt Engine

Nov 6, 2014
14
0
Wayne
Good morning to all. I am having a heck of a time with this rover. 2003 Disco SE I completely rebuilt the motor and replaced many parts. Long list for now, but had two Certified mechanics help me plus followed the Big Rave and Overhaul Manuel vary closely. Was not hard if you have the rights tools, parts and know how. So there's one thing that stands out that I did. upon removing the Fly Wheel, it slipped and hit the CPS, plus it was completely summered in engine cleaner; it was really dirty.

Before I replaced the CPS, sorry; had my girlfriend replace it with her tiny hand yesterday. Two things I did, First pulled the fuel pump fuse to prime the oil pump for 5 secs three times and then put the fuse back in and tried to crank it. No start, secondly, I spayed starter fluid and it hit a few times so I know it fires. Well.......... I was trolling LR forums like an idiot and read to put the key in the first position and pull the battery..... and let it sit for a few mins. ( to clear the computer ??? ) Well that did nothing for my issue...

The next day the CPS was replaced and I went to start it. It sounds good cranking but nothing. Pulled the carpet back and checked the fuel pump with a multi meter. No juice. I check the fuel rail pressure, a little squirt and then nothing. Hot wired the pump and there was lots of pressure. Crank then nothing still. Checked the spark and no spark on both coils.

All fuse were checked and relays were swapped to see what it could be. Looking and testing with my meter all grounds and connections. Every thing looks right and It was running fine, well not fine but running before the engine build. I definitely removed the keys before the battery when starting this whole project.

So what the heck is going on???? Its like the ECU is locking it out ????? Could it be the switch when your vehicle flips over ? The name escapes me ATM, maybe its called the inertia switch. Sites on the RH / Passengers side firewall.

Read and tired every thing from this post: No Power to fuel pump, no spark, turns over. Seriously confused - DiscoWeb Message Boards Except hot wire the inertia switch or replace it. In that post some one asked if the security light is flashing. It is not unless I lock it with the remote. blinks not flashing while locked I believe is normal.
 

discostew

Well-known member
Sep 14, 2010
7,713
1,016
Northern Illinois
Dis the spacers make it to the correct side of the sensor? Kind of a common mistake. Worry about the spark first. The fuel pump wont run till the engine sees crank rpm.
 
Nov 6, 2014
14
0
Wayne
Dis the spacers make it to the correct side of the sensor? Kind of a common mistake. Worry about the spark first. The fuel pump wont run till the engine sees crank rpm.

Thanks for the reply, are you saying I put the spacers on the inside or between the block and the sensor? If so, that's how it is right now. I can recall doing that. dang ....... So careful to follow the Rave rebuild manual too. I think I remember seeing that section too. About to go look in the rave pdf.

I'll have to try that soon as I get off.
 
Thanks for the reply, are you saying I put the spacers on the inside or between the block and the sensor? If so, that's how it is right now. I can recall doing that. dang ....... So careful to follow the Rave rebuild manual too. I think I remember seeing that section too. About to go look in the rave pdf.

I'll have to try that soon as I get off.

Spacers go between nuts and sensor, not between sensor and block.

REAL common mistake.
 
Nov 6, 2014
14
0
Wayne
Spacers go between nuts and sensor, not between sensor and block.

REAL common mistake.

Thanks ptschram, I just saw that in my pdf. No excuse, had the book right in front of me when it was on the stand and when that part was installed.....

Are we thinking that it might be the root of the problem here? No spark, fuel pump not priming ?
 
Nov 6, 2014
14
0
Wayne
I am here to say that I did indeed get it up and running. This thread is now resolved.

The CPS (CKS) was not installed right but ...... I can not say with out a doubt that it causes the coil packs and fuel pump to shut off. I believe it did cause a major fault. However when I got it installed, no fuel pressure even after a few good cranks. I would say 6 full engine rotations. I traced the fuel pump relay(1) ground wire; not giving a signal to the coil /closing the gate on the relay. Followed that to the Main relay (9) that supply the ground wire to the fuel pump relay(1) that activates the coil. The main relay(9) looked like it to was not getting a ground signal. Looking at the rave electrical pdf, looks like that is sent from the ECM. Of course I check all fuses and rechecked them again, even cleaned them. The inertia switch at this time was just jumped and was rechecked for signal many times as the key was put in the second position a few times as well.

At this point I knew the ECM was not sending a signal so I plugged my OBDII WiFI connector in and read some codes. Had a few about my unplugging the fuel pump connector. Those were just pending tho, not stored according to Dash Command; an iPad app. So I plunged the connector back in for the fuel pump and retested the main relay ground signal because the OBDII was working and getting power obsessively . Bingo ! Got a signal from the ECM !!!!

What Happened ???? I have not clue but the engine did fire up with in a few seconds. End of story. Thanks every one !!!!
 

rovercanus

Well-known member
Apr 24, 2004
9,649
246
I am here to say that I did indeed get it up and running. This thread is now resolved.

The CPS (CKS) was not installed right but ...... I can not say with out a doubt that it causes the coil packs and fuel pump to shut off. I believe it did cause a major fault. However when I got it installed, no fuel pressure even after a few good cranks. I would say 6 full engine rotations. I traced the fuel pump relay(1) ground wire; not giving a signal to the coil /closing the gate on the relay. Followed that to the Main relay (9) that supply the ground wire to the fuel pump relay(1) that activates the coil. The main relay(9) looked like it to was not getting a ground signal. Looking at the rave electrical pdf, looks like that is sent from the ECM. Of course I check all fuses and rechecked them again, even cleaned them. The inertia switch at this time was just jumped and was rechecked for signal many times as the key was put in the second position a few times as well.

At this point I knew the ECM was not sending a signal so I plugged my OBDII WiFI connector in and read some codes. Had a few about my unplugging the fuel pump connector. Those were just pending tho, not stored according to Dash Command; an iPad app. So I plunged the connector back in for the fuel pump and retested the main relay ground signal because the OBDII was working and getting power obsessively . Bingo ! Got a signal from the ECM !!!!

What Happened ???? I have not clue but the engine did fire up with in a few seconds. End of story. Thanks every one !!!!
What?
 
Nov 6, 2014
14
0
Wayne
do you have spark?

Yes i do. Its up and running. When I said it was running now, I really meant the engine. Should have made that clear. Looks like I have some dumb oil leak tho now. Plus the Crank pulley seems to have a slight wobble in it. It pretty clear when looking at the other pulleys.

Also I tested and cleaned my injectors and many of them had 3 or 4 just spaying in a stream. 4 of them had 2 jets spiting vs spaying. sooooo I May have have a slight miss fire. You can here the exhaust pop like a bloop sound. similar to a paint can expanding. Just not as loud. Have not heard it in idle tho I cant win.
 
Nov 6, 2014
14
0
Wayne
It was the GF.

Hahaha I was sharing her car.... She was happy to put it back together and get rid of me. Have pics and video of her walking around on the frame inside of the engine bay helping putting it all back together. No, nothing got hooked up wrong. LOL
 

stu454

Well-known member
Dec 15, 2004
5,407
61
Atlanta, GA
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