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knoxville

posted on 19th Jul 03 at 09:12

its got an induction kit on, but thats been there for 2 years with no bother. i've done all the obvious... plugs, leads, oil change. i've had a similar problem before and that was an air leak which i sorted. but can't find one this time. i don't really want to go spending huge amounts of money sorting it out. i'm selling it in the next couple of weeks. The engine management light's not on.


Avinitlarge

posted on 18th Jul 03 at 20:51

Does it have an EGR valve?? I have just fitted one to my mates Astra and the was idling wrong


ally denton

posted on 18th Jul 03 at 20:37

no it sounds like you have a small air leak. have a listen while revving the engine under the bonnet. u fitted an induction kit?


and-m

posted on 18th Jul 03 at 19:57

Read the fault codes from the ECU.


luca2020

posted on 18th Jul 03 at 19:01

christ could be a number of many things:

Idol control valve
Throttal Positional Sensor
Inlet manifold
Inlet manifold gasket
Map reader
Air mass meter
ECU
1 of the wiring looms
lose connection from 1 of the wires connecting the sensors to the ecu
spark plugs and leads

need i go on lol


matt_jonesuk

posted on 18th Jul 03 at 18:13

u got ur plugs on the right torque settings? sounds like plugs mine was doing the small hesitating, misfiring and sometimes decided not to accelarate (almost killed me once pulling out of a junction)

found out the guy who serviced my car changed my plugs but literally i could undo them with my fingers lol


the_legend_of_yrag

posted on 18th Jul 03 at 17:50

Is your engine management light on by anychance?

Mine was on and the engine was lumpy idling, so i a mate pluged the computer thing in to see what the problem was, and eneded up being the map reading sensor. One end had come off, put it back on and all was fine and dandy :-d


Blazer

posted on 18th Jul 03 at 17:43

it might also help if u changed the oil


corsaon18s

posted on 18th Jul 03 at 13:09

all the best


knoxville

posted on 18th Jul 03 at 13:08

i'll give it a try later, cheers


corsaon18s

posted on 18th Jul 03 at 13:07

it should idle about 800 rpm there are a couple of other hings you could do like cleaning the air intake and the throttle body cos you may have a slight blockage.


corsaon18s

posted on 18th Jul 03 at 13:06

simply disconnect the battery for an hour so all the memory is lost from the ecu then after that time connect it up, start then engine.....but dont rev and let it idle for a minute or two hopefull this should sort it out, then all you gotta do is reset your clock and tune in your radio again and your away!


knoxville

posted on 18th Jul 03 at 12:55

no, how's it done?


corsaon18s

posted on 18th Jul 03 at 12:49

have you tried resetting the ecu?


knoxville

posted on 18th Jul 03 at 12:43

the cars a 1.4 16v. When you first start it, the engine is hunting between 750 and 1200 rpm, this settles down after a while. but then when driving it steady, it hesitates and almost feels like a mis fire. i've done plugs and leads, but still no joy. any help would be appreciated