drako Posted August 17, 2013 Share Posted August 17, 2013 Right ill start from the beginning...My engine management light flickered on my Glanza a few days ago more than 3 times but now isnt showing, so yesterday i decided to put my works Launch diagnostic equipment on it which gave me error code 42 - Vehicle Speed Sensor (VSS).From previous experience this usually indicates to an ABS/speed sensor on one or more of the 4 wheels.Will this cause running issues with my car? Reason im asking is i put a thread up on the Fueling and Ignition section about my idling problems and jerky ride. Also the lag in my Glanza is crazy Anyway back to it.. The Launch diagnostic machine cant delete the fault code through the computer and has to be done manually. It gave me two options - 1. Take the main ecu fuse out for 30secs or more or 2. Disconnect the battery for 30secs or more.So i disconnected the battery and fault code still remains ??????? Help? As for the JAM FCD... I just want to make sure its wired up correctly to the map sensor as the wiring is a mess where it joins to it.Its wired in to the the map sensor as should be but the red and black wire for the FCD is going straight to the battery!! Is this correct?Im sure I've heard its ment to be spliced into the loom properly? When i disconnect the earth wire and start it up it runs like a bag of S**T which indicates it must be working. Here's some photos to show what i mean; Cheers guys Quote Link to post Share on other sites
drako Posted August 18, 2013 Author Share Posted August 18, 2013 Right sorted the idle problem and the boost delay..Turned out to be my JAM FCD which was wired into the map sensor. Took it off and put it back to standard and it's fine! Only problem now is I've got a high end misfire/splutter when boosting?? It boosts just above a bar where as before with the FCD connected it would boost on a bar.I've got a HKS adjustable actuator so should I turn the boost down a little?? Quote Link to post Share on other sites
mikey4410 Posted August 18, 2013 Share Posted August 18, 2013 if ure on standard ecu and hitting a bar u are hitting fuel cut my friend do ureself a favour and dont use fcd of any sort.there bad news. Quote Link to post Share on other sites
drako Posted August 18, 2013 Author Share Posted August 18, 2013 But I've hit fuel cut before in my old glanza and it was like hitting a brick wall This is different but i guess it could just be fuel cut and limiting fuel casing it to mis on high revs.How do i over come this problem without using a FCD? Cheapest option preferably? Heard piggy back ecus are a good touch but not sure on prices Cheers Quote Link to post Share on other sites
mattglanza79 Posted August 19, 2013 Share Posted August 19, 2013 Piggy backs are about £500 ish mate. Took my fcd out and my creep is crazy. Gonna fit it again with a rrfpr and get it on the dyno I think. A lot of the td04 guys do this. Only reason fcd is crap is cause car leans out ! Quote Link to post Share on other sites
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