1.8t wont rev over 2000 revs

geofft46 · 24th January 2019, 16:28

hi I have a mg ztt 1.8t.last weekend it started to loose power wouldn't rev up it got me home but now it wont rev over 2000 revs it pops and bangs and the rev counter flickers all over, it starts and ticks over fine

Simondi · 24th January 2019, 16:40

Welcome to the club, sorry to see you are having problems. I'm sure someone more technically minded than I will be doing shortly.

T-Cut · 24th January 2019, 17:43

One query that needs asking is about Fuel Filter Syndrome. You probably don't know what I'm talking about or whether the fuel filter has the orange clip fitted. But it will be worth checking it all out.

TC

marinabrian · 24th January 2019, 17:48

With the symptoms you have described, this will be caused by a broken wire to the MAP sensor on the top on the inlet manifold.

Give each of the four wires a gentle tug where they enter the connector housing, and all will be revealed

Brian

geofft46 · 24th January 2019, 18:00

I have read about the fuel filter problem, but I think it might be electrical it is a very sharp sudden cut then back then cuts again if I hold the throttle down it sounds like a rally car on the start line

COLVERT · 24th January 2019, 18:38

Quote:

Originally Posted by geofft46

I have read about the fuel filter problem, but I think it might be electrical it is a very sharp sudden cut then back then cuts again if I hold the throttle down it sounds like a rally car on the start line

Geoff.---Have another read of post 4 please.-----

T-Cut · 24th January 2019, 19:41

Quote:

Originally Posted by geofft46

I have read about the fuel filter problem, but I think it might be electrical it is a very sharp sudden cut then back then cuts again if I hold the throttle down it sounds like a rally car on the start line

The Fuel Filterr Syndrome may not be involved here, but heed my advice anyway and check if you have the Orange Clip. You'll be glad you did, believe me.

TC

geofft46 · 25th January 2019, 17:06

hi thanks for the replys, I have checked the wiring to the map sensor and all of the outer casings are cracked /split but all are still connected I pulled quite hard on the wires but none broke or moved, i am going to check fuel filter tomorrow, it does seem to rev better when really cold but after less than a minute starts to misfire at about 2000 revs

Yorkshire GOC · 25th January 2019, 17:12

Would also strongly recommend you ask Trikey your nearest T4

guru to give your car a once over with the MG Rover diagnostic tool. He now lives in Northern Suffolk near Beccles.

trikey · 25th January 2019, 18:35

Im suspecting a coil pack breaking down..

24th January 2019, 16:28	#1
geofft46 Newbie mg ztt Join Date: Nov 2018 Location: suffolk Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post	1.8t wont rev over 2000 revs hi I have a mg ztt 1.8t.last weekend it started to loose power wouldn't rev up it got me home but now it wont rev over 2000 revs it pops and bangs and the rev counter flickers all over, it starts and ticks over fine

24th January 2019, 16:40	#2
Simondi Regional Secretary MGTF, MG ZS EV Exclusive Join Date: Sep 2007 Location: Kilwinning Posts: 14,046 Thanks: 1,460 Thanked 3,563 Times in 1,857 Posts	Welcome to the club, sorry to see you are having problems. I'm sure someone more technically minded than I will be doing shortly. __________________ Simondi FAQ How do you do that? Club Flyers Looking for a car seen in a film or on TV? Fancy a change in colour or wheels - paint configurator OBD - Trip Meter Ultimate Buyers Guide Post YouTube videos

25th January 2019, 17:12	#9
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,069 Thanks: 1,842 Thanked 623 Times in 469 Posts	Would also strongly recommend you ask Trikey your nearest T4 guru to give your car a once over with the MG Rover diagnostic tool. He now lives in Northern Suffolk near Beccles. __________________ She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.

25th January 2019, 18:35	#10
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,773 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Im suspecting a coil pack breaking down.. __________________ Lest we forget..

24th January 2019, 17:43	#3
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	One query that needs asking is about Fuel Filter Syndrome. You probably don't know what I'm talking about or whether the fuel filter has the orange clip fitted. But it will be worth checking it all out. TC

24th January 2019, 17:48	#4
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	With the symptoms you have described, this will be caused by a broken wire to the MAP sensor on the top on the inlet manifold. Give each of the four wires a gentle tug where they enter the connector housing, and all will be revealed Brian

24th January 2019, 18:00	#5
geofft46 Newbie mg ztt Join Date: Nov 2018 Location: suffolk Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post	I have read about the fuel filter problem, but I think it might be electrical it is a very sharp sudden cut then back then cuts again if I hold the throttle down it sounds like a rally car on the start line

25th January 2019, 17:06	#8
geofft46 Newbie mg ztt Join Date: Nov 2018 Location: suffolk Posts: 4 Thanks: 0 Thanked 1 Time in 1 Post	hi thanks for the replys, I have checked the wiring to the map sensor and all of the outer casings are cracked /split but all are still connected I pulled quite hard on the wires but none broke or moved, i am going to check fuel filter tomorrow, it does seem to rev better when really cold but after less than a minute starts to misfire at about 2000 revs