Ash808 Posted June 24, 2014 Share Posted June 24, 2014 Hi all, wonder if anyone could shed some light on this issue i currently own a 1994 import NA, had it since September last year, just a weekend car, starts first time, drives no problem either but on a few occasions when u stop at a junction or traffic light the car begins to judder, like its running to rich, ive switched the engine off a few times when this has happened and its cleared it, starts back up fine runs ok, but latley its started to cut out and junctions, but again starts up fine runs fine after (just typical men we think if you leave this problem, like going to the doctors it mite go away), few people have suggested the same that a sensor maybe clogged up with grime over the years and that it just needs to be taken out cleaned and put back in (i presume easy todo by urself?) ive added a picture of the engine bay below, not that good with cars tbh but we all learn could someone even point me in the right direction or even draw where or what sensor mite be the problem.. Cheers Ash Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted June 24, 2014 Share Posted June 24, 2014 It sounds like it needs a good blow out to me. Have you nailed it lately? Quote Link to comment Share on other sites More sharing options...
slow8dirty Posted June 24, 2014 Share Posted June 24, 2014 http://mkivsupra.net/vbb/showthread.php?152779-How-to-Clean-O2-sensors-in-NA&highlight=cleaning+sensors Quote Link to comment Share on other sites More sharing options...
The Raven Posted June 24, 2014 Share Posted June 24, 2014 Does it idle funny? TPS can cause all kinds of gump to happen Quote Link to comment Share on other sites More sharing options...
Ash808 Posted June 24, 2014 Author Share Posted June 24, 2014 It sounds like it needs a good blow out to me. Have you nailed it lately? part of me thought the same as it only goes out at weekends, tried giving it a good blow, still the same problem, like its clogged up, when we do the monthly meet, typical it doesnt do it Quote Link to comment Share on other sites More sharing options...
Ash808 Posted June 24, 2014 Author Share Posted June 24, 2014 http://mkivsupra.net/vbb/showthread.php?152779-How-to-Clean-O2-sensors-in-NA&highlight=cleaning+sensors that mite do the trick, thank mate il give it ago Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 25, 2014 Share Posted June 25, 2014 An engine of that age should have new O2 sensors, cleaning them in lemon juice or vinegar is a ludicrous waste of time. I would fit a pair of new ones if the old ones are lazy. Any competent garage can check their waveforms in minutes. Quote Link to comment Share on other sites More sharing options...
Ash808 Posted June 25, 2014 Author Share Posted June 25, 2014 An engine of that age should have new O2 sensors, cleaning them in lemon juice or vinegar is a ludicrous waste of time. I would fit a pair of new ones if the old ones are lazy. Any competent garage can check their waveforms in minutes. What's the average price, £100 each? Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted June 25, 2014 Share Posted June 25, 2014 An engine of that age should have new O2 sensors, cleaning them in lemon juice or vinegar is a ludicrous waste of time. I would fit a pair of new ones if the old ones are lazy. Any competent garage can check their waveforms in minutes. I removed mine Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 25, 2014 Share Posted June 25, 2014 I know some people have had good success with aftermarket ones, but my experience dictates they never seem to work as effectively as OE ones. With fuel costs as they are, if you put many miles a year on the car extra MPG from an OE sensor may be worthwhile. Quote Link to comment Share on other sites More sharing options...
Stevo Posted June 25, 2014 Share Posted June 25, 2014 Had the same problem in my NA a few years ago now and cleaning the Idle Air Control Valve (IACV) sorted it out. There's a guide here but it's for a TT, although the principal is the same. Your IACV is on the front of the throttle body next to the Throttle Position sensor. Quote Link to comment Share on other sites More sharing options...
Ash808 Posted June 25, 2014 Author Share Posted June 25, 2014 Cheers stevo, il try it this weekend, the bottom screw looks interesting to get out tho Quote Link to comment Share on other sites More sharing options...
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