pezzler Posted July 18, 2011 Share Posted July 18, 2011 After a couple of intermittent coughs and splutters, I had a gander at the fault codes and it seems my car has a cam sensor related problem. I managed to squeeze in to check the resistance on the "middle" sensor and that fell within the scale, but the one at the back is a complete PITA to get to so I didnt bother. Decided that I'm just going to go ahead and just replace them anyway, has anyone done this before? Can anyone offer any advice? Is it worthwhile removing the inlet manifold for access as i'm also going to fit new connectors as they're like to fall into a million pieces Thanks all If anyone is interested, they're £95 each from Toyota Quote Link to comment Share on other sites More sharing options...
Ian C Posted July 19, 2011 Share Posted July 19, 2011 With these things it's usually the connector plug or wiring thats corroded or damaged, rather than the sensor itself, especially if the problem is intermittent - poor connections, broken wiring, that sort of thing. It'd make more financial sense to check for and fix any problems with those before shelling out on a new CPS or two While you could probably get them out with minimal dismantling, taking the throttle body and plenum off would make life much, much easier - especially if you're soldering or rebuilding connectors. -Ian Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 19, 2011 Share Posted July 19, 2011 Easiest to get a garage to `scope the outputs of them.The reason they use two sensors is to make the timing synch in less engine revolutions, for emissions purposes. Once running there's no advantage in two cam sensors. Usually magnetic sensors either work or they don't, as Ian says, suspect the wiring or the connector plugs first. The actual sensors are quite cheap for Toyota . I am taking all the intake runners off a TT today to fit shiny stuff, I weigh up the least you should remove to get good access. Quote Link to comment Share on other sites More sharing options...
pezzler Posted July 19, 2011 Author Share Posted July 19, 2011 Thanks for the info chaps Already spoken to Toyota, i've ordered 2 x cam sensor connectors - £16 inc VAT (cheaper than the £200+ I was looking at) Going to hopefully give it a whirl at the weekend Quote Link to comment Share on other sites More sharing options...
pezzler Posted August 19, 2011 Author Share Posted August 19, 2011 Thought i'd do a (late) update for future reference I replaced the connectors, they were far more accessable that I had first though - took about 15 mins The mid sensor connector was intact but a little ropey so I replaced it, and the rear connector was cracked straight down the middle which in turn completely buggered its ability to seal. The result being, that the pins had engine oil on them from a slightly weepy cam-cover gasket. Connectors replaced, and it hasnt skipped a beat yet - thanks to Ian and Chris for the input Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 19, 2011 Share Posted August 19, 2011 Good man, these cars are getting elderly now, wiring, connectors and contacts can cause all sorts of issues. Glad you have it sorted! Quote Link to comment Share on other sites More sharing options...
pezzler Posted August 21, 2011 Author Share Posted August 21, 2011 wiring, connectors and contacts can cause all sorts of issues! Too true. This year I have replaced the following connectors: all 6 coilpack, MAP sensor, IAT sensor, both cam position sensor, ECU temperature sender, dash temperature sender, throttle position sensor Its absolute madness, as soon as you look at one of these 18 year old connectors, they fall apart and blow away in the wind. My advice to anyone would be; if you're about to carry out a job where you will need to remove the harness from sensor(s), then presume that the connector will be useless and order it in beforehand and replace it anyway. Nothing worse than getting your teeth into a job and having to be held up to order connectors Quote Link to comment Share on other sites More sharing options...
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