toyota carina problems

mr lee

i have a 96 carina 1.6 leanburn,around 2.5k-3k revs its misfires and when im driving every so often it loses all accelleration,it will maintain the speed its goin just about,it has 140k on d clock, its not burning oil, its serviced,d cat is ok,im thinkin it might be d co2 sensor but these are big money for d leanburn engine,i just want to has anyone any experience of this or has anyone any ideas,also d engine management light is one and fuel economy is not what it should be,thanks in advance.

Bodhan

I had a 97 Carina (great car) the O2 sensor went twice in it. The part came from Main dealer only and it was €150, but that was a few years ago now.
Simple to change yourself tbh

echos

Happened to my friends astra, O2 Sensor

peasant

Wooot !?

The words "Carina" and "problem" in the same sentence?

This must be a parallel universe

shamwari

The engine management fault codes can be read by following a procedure which involves bridging terminals E1 and TE1 on the diagnostic connector under the bonnet, and counting the blinks of the engine management light.

The full procedure is explained here. http://www.toyotaownersclub.com/forums/index.php?showtopic=98886

Make sure you read it in full and understand it before you commence trouble shooting. If you have any doubts then get someone to check this who is competent in what they are doing.

If the fault codes relate to the lambda sensor then do not automatically assume it is faulty based on fault code alone. Also there are around 7 or 8 different O2 sensors for the Carina E, depending on year and model. You need to fit the EXACT one, and I've heard many stories of aftermarket ones not working properly. Genuine is the best route, but very expensive.

To clear the fault codes after diagnosis, pull the EFI fuse in the underbonnet fusebox for around 20 secs, or disconnect the battery for the same duration (you will lose radio settings and codes)

hiluxman

a faulty o2 sensor will not cause a missfire, the o2 sensor readings are ignored by the ecu on acceleration. it could be a coil pack or a plug lead fault, you could also check the vacuum hose to the map sensor for splits or leaks

gitman

Its more than likely a coil or O2 sensor. Ive come across this with a few customers with Carinas in work.

AzureAuto

Hiluxman's logic is faultless, Id also say it was more than likely a coil pack/HT lead fault, (assuming the plugs are correctly gapped and not soiled). How is your fuel consupmtion? Has it changed dramatically since the problem, (i.e. this is a general indicator of faulty mixture control issues).

johnos1984

peasant wrote: »

Wooot !?

The words "Carina" and "problem" in the same sentence?

This must be a parallel universe

I believe my father owned the worlds only UNRELIABLE CARINA which was bought new in 1995.

He still loved it, also the service given by Toyota at the time was excellent.

I saw the car recently so its still on the road.....most of it was new by the time he sold it in 2002

johndaman66

To echo Hiluxman's sentiment I too would be thinking its a coilpack/ sparkplug(s)/ leads or something in that regard. Does the car seem to hold back when accelerating and then all of a sudden you would get a wee burst of speed again?

mr lee

thats exactly how it is,is there a way of checking the leads and coil myself before i start spending money and buying parts

Eric Cartman

In before VB..

an unreliable carina, pigs flying, bread unsliced, garry glitter opens childcare centre.... ohh the humanity

shamwari

mr lee wrote: »

thats exactly how it is,is there a way of checking the leads and coil myself before i start spending money and buying parts

Your post also mentioned that the engine management light was on. The procedure I linked to in my post above will help you retrieve the code associated with the fault being detected. If you can get your head around it, it will provide some insight into the fault at no cost!

Whilst others here have said that O2 sensors do not cause misfires (which is true), they can cause the engine to stumble momentarily in certain circumstances, giving the impression that there is indeed a misfire. A fault code associated with O2 sensor range / performance can also be flagged. A car came to me once jumping like a kangaroo under modest to hard acceleration, the EML was on, and a code as above was flagged. A previous "handy man" had replaced the O2 sensor but the fault persisted. The O2 sensor was innocent, and replacing it was in fact "shooting the messenger". The cause of the problem was a failing head gasket. The fact the the owner was adding a litre of water every two days and the exhaust was puffing steam didn't raise the alarm with him.......:rolleyes: