My 75 CDTI

MRCLEAN1 · 4th November 2014, 07:24

Good morning everyone,

I have a 2004 CDTI auto with 92k on the clock and I have noticed when you are sat at idle the revs fluctuate and you can see the rev needle move.

I have yesterday replaced the Air Mass Meter with a Piterburg MAF from EURO Car Parts I use them all the time and the man I always use recommended this one at its better than the Bosch. I am getting reading from it so I don’t think it this.

Power delivery is fine and smooth as well, I am wondering if I have a blocked injector or something similar.

Can any one help? I would appreciate it.

Regards,

Adam

ceedy · 4th November 2014, 07:52

Just a comment ..never seen a Pierburg that is compeletely compatible with the 75/zt .

The motor will run , but its no going to perform properly !

.
it will tend to overfuel even more than standard

C.

MRCLEAN1 · 4th November 2014, 08:06

I also though it was strange but this is what was listed as a direct replacment for the Bosch. It cost £102 including the VAT even with my discount.

The car is driving fine and the Power is at it normal level.

alan richard · 4th November 2014, 09:28

Here's an eye-wateringly long thread on the subject of lumpy idle and the guys trials at fixing it;

http://forums.mg-rover.org/showthread.php?t=283948

If you can wade through it there are a few tips.

-a

polinsteve · 4th November 2014, 15:19

Does the problem occur only with the aircon on?

wmj · 4th November 2014, 15:49

Quote:

Originally Posted by polinsteve

Does the problem occur only with the aircon on?

I have that very problem with mine! Revs up and down with aircon/climate control on. If you have a solution I would be very grateful.

MRCLEAN1 · 7th November 2014, 09:43

I have been told it need new glow plugs so that a job for next week.

fingers crossed that sorts it

Lotaskin · 7th November 2014, 09:54

Quote:

Originally Posted by MRCLEAN1

I have been told it need new glow plugs so that a job for next week.

fingers crossed that sorts it

Glow plugs are only used when starting the car from cold I believe so I doubt it will be them.
If I'm wrong I'm more than happy to be told.

FrenchMike · 7th November 2014, 10:17

Forget glow plugs ,only useful for Siberian people .

Try disconnecting successively each injector plug and note what are the differences.

MRCLEAN1 · 7th November 2014, 13:38

I took it to a chap i used to know, he was a master tech for rover for 20 years and now has his own garage. He plugged it into T4 and said thats the only error it came back with. He did say they are always on but the voltage drops when the engine is running.

He also looked at all my other levels when on T4 and said it was all fine so well pleased with that.

I though i would change them anyways as i can do it my self and the glow plugs are cheap enough.

4th November 2014, 07:24	#1
MRCLEAN1 Regular poster Rover 75 Join Date: Oct 2014 Location: PORTSMOUTH Posts: 34 Thanks: 7 Thanked 0 Times in 0 Posts	My 75 CDTI Good morning everyone, I have a 2004 CDTI auto with 92k on the clock and I have noticed when you are sat at idle the revs fluctuate and you can see the rev needle move. I have yesterday replaced the Air Mass Meter with a Piterburg MAF from EURO Car Parts I use them all the time and the man I always use recommended this one at its better than the Bosch. I am getting reading from it so I don’t think it this. Power delivery is fine and smooth as well, I am wondering if I have a blocked injector or something similar. Can any one help? I would appreciate it. Regards, Adam

4th November 2014, 07:52	#2
ceedy This is my second home All Trophy Blue ,ZT260#50 , ZT CDTI Auto, ZR105+ and 1.8T Firefrost spoiling the Set . Join Date: Nov 2006 Location: Nr Sherborne But in Somerset.. Posts: 6,076 Thanks: 916 Thanked 1,214 Times in 768 Posts	Just a comment ..never seen a Pierburg that is compeletely compatible with the 75/zt . The motor will run , but its no going to perform properly ! . it will tend to overfuel even more than standard C. __________________ The Three Bloo's Wifey's Zr105, MY CDTI & 260 #50 and Number One sons 1.8T in Firefrost When I were a lad Zero to 142 in 10.25 secs at the Pod on my Blown Norton. 210 Kart Champ in 70's

4th November 2014, 08:06	#3
MRCLEAN1 Regular poster Rover 75 Join Date: Oct 2014 Location: PORTSMOUTH Posts: 34 Thanks: 7 Thanked 0 Times in 0 Posts	I also though it was strange but this is what was listed as a direct replacment for the Bosch. It cost £102 including the VAT even with my discount. The car is driving fine and the Power is at it normal level.

4th November 2014, 09:28	#4
alan richard Avid contributor 75 Tourer cdti Join Date: Jul 2012 Location: Melton Mowbray Posts: 244 Thanks: 62 Thanked 23 Times in 22 Posts	Here's an eye-wateringly long thread on the subject of lumpy idle and the guys trials at fixing it; http://forums.mg-rover.org/showthread.php?t=283948 If you can wade through it there are a few tips. -a

4th November 2014, 15:19	#5
polinsteve Gets stuck in 75 Join Date: Mar 2013 Location: UCKFIELD Posts: 502 Thanks: 35 Thanked 122 Times in 85 Posts	Does the problem occur only with the aircon on?

7th November 2014, 09:43	#7
MRCLEAN1 Regular poster Rover 75 Join Date: Oct 2014 Location: PORTSMOUTH Posts: 34 Thanks: 7 Thanked 0 Times in 0 Posts	I have been told it need new glow plugs so that a job for next week. fingers crossed that sorts it

7th November 2014, 10:17	#9
FrenchMike This is my second home Rover 75 Saloon Join Date: Aug 2007 Location: Avignon Posts: 4,466 Thanks: 94 Thanked 661 Times in 554 Posts	Forget glow plugs ,only useful for Siberian people . Try disconnecting successively each injector plug and note what are the differences.

7th November 2014, 13:38	#10
MRCLEAN1 Regular poster Rover 75 Join Date: Oct 2014 Location: PORTSMOUTH Posts: 34 Thanks: 7 Thanked 0 Times in 0 Posts	I took it to a chap i used to know, he was a master tech for rover for 20 years and now has his own garage. He plugged it into T4 and said thats the only error it came back with. He did say they are always on but the voltage drops when the engine is running. He also looked at all my other levels when on T4 and said it was all fine so well pleased with that. I though i would change them anyways as i can do it my self and the glow plugs are cheap enough.