Guest RT19 Posted August 1, 2007 Hi Guys, Having some trouble locating a problem with my standard issue 1.9. Perhaps some of you diagnostic buffs can shed some light? Here is a description of whats going on; >between 2 & 3 k revs she chokes and loses power, and again just before 4k. >it's a lot worse when its wet. >it's particularly noticable when she has to work, i.e. go up hill >it's also a lot more noticable the higher the octane fuel used. >new plugs improved the issue, but only very slightly. >more recently her idling becomes erratic - going up and down - after the first 10 mins of driving, stalling if left unattended. I'm no expert (by any stretch of the imagination!) but I was wondering if it was poss the HT leads failing? Your advice would be appreciated. Share this post Link to post Share on other sites
welshpug 1,657 Posted August 1, 2007 (edited) I'd hazard a guess at the ignition amp or coil, but seeing as the leads are cheap you might as well change them anyway if theyre unknown. Edited August 1, 2007 by welshpug Share this post Link to post Share on other sites
Richie-Van-GTi 71 2 Cars Posted August 1, 2007 sounds like SAD or ECU temp sensor causing over fueling. Share this post Link to post Share on other sites
Longun 1 Posted August 1, 2007 Are 1.6 SAD's/Temp sensor the same as 1.9s as I'm local and don't use either on my 1.6 you could use my old ones. Share this post Link to post Share on other sites
GLPoomobile 958 Posted August 1, 2007 Are 1.6 SAD's/Temp sensor the same as 1.9s as I'm local and don't use either on my 1.6 you could use my old ones. ECU Temp sensor are the same. 99% sure the SAD will be the same as well, or at least I can't see any logical reason why they be different for 1.6/1.9. Share this post Link to post Share on other sites
Ahl 4 Posted August 1, 2007 I'd go with what Welshpug says. It sounds like its ignition related (though you never know), so try changing those parts first. You can see if the HT leads are breaking down by looking at them in the dark - you'll see the electricity coming out of them. Thats not to say that they are causing the problem though, it could still be something else, like the rotor arm, dizzy cap, coil or ignition amp...failling that, the cable that comes out of the side of the dizzy can also be problematic if it or its plug is damaged. Share this post Link to post Share on other sites
Guest RT19 Posted August 2, 2007 Nice one guys. Plenty there for me to chew on. Will start with the cheap stuff, leads and perhaps a new dizzy and see what happens. Cheers all. Matt Share this post Link to post Share on other sites
spikey_richie 0 Posted August 5, 2007 I had a similar issue with my Mi. I'd be happily going along, then she'd start jumping and mis-firing and ALL the power would be gone. Then it'd come back again. After a LONG day taking everything apart, changing parts and trying a new ECU it turned out to be the magnetic thing that sits in the top of the fly wheel (I'm not good with engines - someone will know the name of it). We took it out, and cleaned off little bits of metal that were stuck to it. Popped it back in and she was back to her old self again. Share this post Link to post Share on other sites
welshpug 1,657 Posted August 5, 2007 (edited) that'll be the TDC sensor, something the aforementioned 1.9 doesnt have Edited August 5, 2007 by welshpug Share this post Link to post Share on other sites
spikey_richie 0 Posted August 6, 2007 Shows how much I know about cars Share this post Link to post Share on other sites
brianthemagical 1 Posted August 6, 2007 shows how easy/hard 205's are to fix. Share this post Link to post Share on other sites
