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Author 1.2 8v Fine cold, Lumpy / Missfire when on temp
drax
Member

Registered: 5th Feb 05
Location: Sittingbourne, Kent
User status: Offline
28th Aug 07 at 17:43   View User's Profile U2U Member Reply With Quote

My car seems to have developed a problem,

It cut out as if it was out of fuel a few weeks ago, then wouldnt start till it had gallons of cold start stuff over the HT leads, found the leads to be abit dodgy so replaced them, found it ran with a missfire, cleaned the plugs abit, worked for about 3 mins then was lumpy again..

car is fine and starts pretty much first time when cold, but as soon its warmed up it as soon as you rev it the first part of the rev is hesitant like you are in 2nd gear trying to pull away (its not in gear).

Also worth noting, the ECU light is on when starting the car, I thought this was normal as ive always seen it on when starting, its not on when driving.

Any ideas
drax
Member

Registered: 5th Feb 05
Location: Sittingbourne, Kent
User status: Offline
29th Aug 07 at 12:57   View User's Profile U2U Member Reply With Quote

bump
ad-sport
Member

Registered: 16th May 07
User status: Offline
29th Aug 07 at 19:48   View User's Profile U2U Member Reply With Quote

temp sensor 2? controls the choke so would cause poor warm start, poss mass air sensor fualt 2 as this would cause the 'bogging' type problem when reving
Sunz
Member

Registered: 12th Jan 07
Location: SE England
User status: Offline
30th Aug 07 at 14:46   View User's Profile U2U Member Reply With Quote

I have this problem with my 1.4 8v. but it dosent stall just seems to run nasty on idle.

In the manual it says to try.
New plugs.
Gap them correctly
Ht leads
leak in the inlet.
Distributor cap cracked
also disconnected, leaking or perished crankcase ventilation hoses.

drax
Member

Registered: 5th Feb 05
Location: Sittingbourne, Kent
User status: Offline
31st Aug 07 at 17:54   View User's Profile U2U Member Reply With Quote

Any more ideas, the more the merrier as im going to attempt to sort it out this weekend
PaulW
Member

Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
31st Aug 07 at 19:18   View User's Profile U2U Member Reply With Quote

coolant temp sensor
thermostat stuck shut
waterpump on its way out
mattk
Member

Registered: 27th Feb 06
Location: St. Helens
User status: Offline
31st Aug 07 at 19:36   View User's Profile U2U Member Reply With Quote

vacume pipes, although it wouldnt idle or run well from cold
drax
Member

Registered: 5th Feb 05
Location: Sittingbourne, Kent
User status: Offline
1st Sep 07 at 13:57   View User's Profile U2U Member Reply With Quote

Im pretty sure Its a sensor gone as I was driving it fine, altho it did seem abit boggy a few times before hand but nothing that noticiable.

One thing i will say, if i ever hit 100mph in it, it would misfire

 
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