Back in July, the exhaust went on my 98 1.6 Xsara and I had a new catalytic converter fitted. I drove for about 10 minutes with no exhaust to get to the garage. A couple of days later the engine light came on and the car started to misfire occasionally. I took it to a Citroen dealer who said the ECU was coming up with a problem with an injector so I paid £200 for a new injector harness. It made no difference and the mechanic said they couldn't get the light to turn off, therefore I 'needed a whole new ECU.'
Not wanting to pay £600 I've been putting up with it for a few months now. Sometimes the car runs perfectly, other times it frequently loses engine power for a split second. This happens whether I'm accelerating or travelling at a constant speed.
It idles ok, apart from an occasional 'cough' when the engine momentarily loses 50 or RPM and then recovers.
Any ideas? I suspect the lambda sensor since the exhaust went just before the problem.
2006-12-04 23:37:48 · 3 answers · asked by alexis_vallance 1 in Cars & Transportation ➔ Car Makes ➔ Citroen
i would have thought it would be the lamba probe,or has that right cat been fittted,or has it been fitted properly ie a gasket might have been left off the exhaust and the lamba probe is trying to correct over compesate for it
2006-12-04 23:57:46 · answer #1 · answered by neil h 3 · 0⤊ 0⤋
Most probably the Lambda sensor. But check also the injection and engine management electronics. I have a 1.4 Xsara and had similar problems, until we found out that the engine's computer is malfunctionning.
2006-12-05 08:48:10 · answer #2 · answered by marechal_00 5 · 0⤊ 0⤋
the cat. has too much back pressure and pushing into the valve this will harm the injectors and valves if not fixed. it does sound like the cat. is blocked,or not the right fit. i agree with the first guy.
2006-12-05 08:52:51 · answer #3 · answered by Jennifer T 2 · 0⤊ 0⤋