S40 1.8i 1999 Power Loss at 3000rpm

temevalley · Jan 18th, 2008, 08:38

Hi, am new to this site - so be gentle with me.

I have recently brought a 1999 S40 1.8i. i get a huge loss of power when the car gets to 3000rpm, this happend in all gears - however when i change a gear it picks back up again until i get to 300rpm. by power loss i mean loss of acceleration.

Can anyone help. thanks

manoman48 · Jan 18th, 2008, 11:08

Hi

A few things to check first:

Air filter, spark plugs, leads, coil packs (don't know if your engine has these)

Then check the exhaust isn't blocked in some way by the contents of the catalytic converter or boxes having collapsed and stopping air flow.

Does it rev freely at standstill?

DRILL · Jan 18th, 2008, 11:38

check your throttle sensor

does your engine management light come on when it loses power

D5driver · Jan 18th, 2008, 12:16

GDI Motor ?

temevalley · Jan 18th, 2008, 16:20

Yes it is the GDI engine - after some research have found that they were deseigned to run on high octane unleaded, something to do with a mitisubuishi/vovle patnership, can anyone confirm this.

when idleing i can rev car past 6000rpm no probs.

I have had the engine management light come on once for about 2-3 minutes then go back out.

Jan 18th, 2008, 08:38	#1
temevalley New Member Last Online: Aug 21st, 2008 17:45 Join Date: Jan 2008 Location: knighton	S40 1.8i 1999 Power Loss at 3000rpm Hi, am new to this site - so be gentle with me. I have recently brought a 1999 S40 1.8i. i get a huge loss of power when the car gets to 3000rpm, this happend in all gears - however when i change a gear it picks back up again until i get to 300rpm. by power loss i mean loss of acceleration. Can anyone help. thanks

Jan 18th, 2008, 11:08	#2
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	Hi A few things to check first: Air filter, spark plugs, leads, coil packs (don't know if your engine has these) Then check the exhaust isn't blocked in some way by the contents of the catalytic converter or boxes having collapsed and stopping air flow. Does it rev freely at standstill?

Jan 18th, 2008, 11:38	#3
DRILL Junior Member Last Online: Oct 18th, 2011 19:43 Join Date: Aug 2007 Location: luton	check your throttle sensor does your engine management light come on when it loses power

Jan 18th, 2008, 12:16	#4
D5driver No Spam here Last Online: Jun 9th, 2023 22:40 Join Date: Dec 2006 Location: Home	GDI Motor ?

Jan 18th, 2008, 16:20	#5
temevalley New Member Last Online: Aug 21st, 2008 17:45 Join Date: Jan 2008 Location: knighton	Yes it is the GDI engine - after some research have found that they were deseigned to run on high octane unleaded, something to do with a mitisubuishi/vovle patnership, can anyone confirm this. when idleing i can rev car past 6000rpm no probs. I have had the engine management light come on once for about 2-3 minutes then go back out.

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