jay200bhp Posted October 22, 2014 Share Posted October 22, 2014 (edited) Hi guys just rebuilt my inlet manifold back up after havin my wiggins clamps welded on etc and the injector rail and runners etc as well as the main inlet manifold powder coated. Injectors came straight out and into clean zip lock bags...etc.upon startin it up for the first time admittedly the intercooler to throttle body pipe wasnt clamped up the car ran bit lumpy as hell with lots of white smoke from the exhaust.... The map sensor wire had three joins when it came from its recent rebuild all along the length of the wire so i replaced these woth one soldered joint and three new wires... Could this be a vac plumbing issue. The map sensore wiring not correct i.e a wire mixed around?? The iacv which i have cleaned up too....but when i reassembled this i set it fully open so the piston was wound in ,thinking it would re position on startup... The car smells fuelly though.... And when running lumpy and i unplug the map sensore the revs rise up then car shuts off....... The car runs syvecs. But i didnt have my laptop about...help pleeeease. . Edited October 24, 2014 by jay200bhp (see edit history) Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 22, 2014 Author Share Posted October 22, 2014 Also could the tps be at fault as i had completely dismantled the throttle body... There are to "position pots" one for trac butterly which was removed and welded up and one for main throttle control butterfly but this has the longer cable that lends it self in the correct direction to connect to the rearward "pot" imo. Cpuld symptons be from these being wrong...hmm Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 22, 2014 Share Posted October 22, 2014 Get your laptop and read the sensor signals for a start. White smoke sounds ominous. Smoke or steam? White smoke is usually antifreeze burning, or occasionally brake fluid. Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 22, 2014 Author Share Posted October 22, 2014 Whilst reconnecting water pipes up chris coolant did spill from the rear pipe onto the area the iacv is. Im not really to sure what to look at plugging the syvecs Into the laptop .any ideas what values the sensors should say? Or will it show a fault on the ecu as a stored files i can read to point us into the correct direction??? Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 22, 2014 Author Share Posted October 22, 2014 any more ideas boys ill not sleep thinking of this tonite Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted October 22, 2014 Share Posted October 22, 2014 Plug laptop in via ethernet, open sdata, click device, connect, then save the file. Open in sview then view errors by clicking device, errors. Think that's how you do it from memory! Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 23, 2014 Author Share Posted October 23, 2014 Hi budz I found your post with kaan and have pulled the logs. thanks mate for that post.The logs were as follows. the first is the logs after plugging the laptop in as budz says above . The second picture is the "real time data" with ign off The third is with the car ticking over (spluttering as decribed) when the syvecs logs the codes in green writing are those errors since it was installed a couple of years ago as I couldn't find any time recognition to them to say when they occurred? the map1 coloumn ... is this the output reading from the map sensor? it shows 2096 any ideas what a healthy map sensor should read? so I can try and fix the car Cheers guys Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 23, 2014 Share Posted October 23, 2014 (edited) That's not a log, a log is a computer file. They are just screen shots. You need to clear all the old codes and run it again. Caveat!!! I am not a mapper, I would probably only spot something very obvious. I would expect the TPS to be at or near zero idling though, but 7 doesn't seem ridiculous. The MAP sensor voltage sounds reasonable, does it vary when you blip the throttle? You need to enable logging and generate a file to send Ryan or whoever mapped the engine. Edited October 23, 2014 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 23, 2014 Author Share Posted October 23, 2014 That's not a log, a log is a computer file. They are just screen shots. Cw hi mate .how do i get the log file as a computer file? So i can post it up does it come by somehow importing a file to sview?? The green list of data in my photo is that a list of errors or just the sensors covered by the ecu. As in red it says no logged data to download in red.... Apologies for not being sure what the hell im doing with sdata Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 23, 2014 Share Posted October 23, 2014 https://www.scribd.com/doc/99028673/Syvecs-Software-Basic-Manual Be careful if you try and test outputs, you can do a lot of damage! I would get a mapper in myself. Well, no, that's not ture, if it was *MY* car I'd save the map and have a fiddle, but it's *NOT* my car Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 23, 2014 Author Share Posted October 23, 2014 I thought there may be a fault page and it can say if the map sensor is working correctly ... The car was absolutely fine map wise .and ran perfectly.the only issue has been since i removed the inlet manifold...throttlebody and injector wires.and replaced the map sensor wire with four soldered joints along its length. I just didnt want to drag the manifold off again to get at the map wire to check its soldered correctly and a pin isnt swapped around. Has anyone any idea what a 3 bar map sensor on syvecs reads normally as a value on sdata. Can someone plug in and see for me?? Would thia help diagnose a bad pin config on the map sensor? Has to be something i have done chris.... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 23, 2014 Share Posted October 23, 2014 (edited) Have you put the two ecu ground wires back, under the intake runners? They are easily forgotten as they are hard to see and get at. they have black sheathing, and have 6mm eyelet termination. If you look at live data in gauge format, for the MAP sensor, does it vary from key on, engine off, to idling, and also varies substantially when you blip the throttle? If it does it's probably OK. I'm much more comfortable with Motec to be honest. If you are saying you have fitted a different type of MAP sensor from that which is was mapped on, then I would guess it will need re-mapping to suit the different vac / pressure versus volts out it probably gives. Personally I would only fit a MAP sensor somewhere very easily accessible. Are saying it's buried away? Edited October 23, 2014 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 23, 2014 Author Share Posted October 23, 2014 Chris it is possible that the two ecu ground points werent masked and powder coat is preventing a good earth...its exactly the same map sensor from when ryan. Fitted my syvecs and mapped it mate.sensor is on passenger side bulkhead easy to get to .... But loom where the plug solders in is tucked under the manifold and a bit fiddly i will clean and check earths and map sensor wires first. Do they need to go to manifold somewhere or exactly where they came from... As shes single turbo some water piping that has been taken away has left a few options for mounting them .thanks again Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 23, 2014 Share Posted October 23, 2014 So long as the two tagged wires are well grounded to clean engine metal they'll be fine. I have to just guess that the Syvecs uses and needs these tow stock ecu grounding wires. I would also guess that without them the engine either wouldn't run at all, or would have serious issues running. Set up some gauges and have a look what the MAP sensor is doing. When you get it working leave the damned thing alone Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 24, 2014 Author Share Posted October 24, 2014 Right gents the map sensor was indeed wired with two pins mixed around.now when the car runs it still smells fuelly but does run better although it has a new charicteristic. When it starts the revs rise to around three thousand then drop to idle when You apply throttle it revs up higher than the amount the throttle is pressed like when you start it and takes 3 to 4 seconds to return to idle.... As the map sensor was wired wrong is it now goosed..?? Or is this an iacv issue that all looks fine and when dismantled the "piston"was in the closed posotion i e all the way shut. Any ideas cheers Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 24, 2014 Share Posted October 24, 2014 You haven't had the throttle body apart for painting or polishing have you? Did you remove the throttle position sensor? Why not just take it to a mapper and have it checked out? Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 24, 2014 Author Share Posted October 24, 2014 Yes mate i have had the throttle body completely apart..... Every bronze bush even..... I could take it to a mapper ...but i cant drive it how it is at the moment and f1 season is hotting up at work with car build so i havent got time to tow the car.i text and fb messaged ryan but havent heard yet.also tim at jt who has helped with my toucan before now but am yet to hear back from him too... I marked a scribe line on the body of the throttle body and on the tps so they aligned exactly to where i took it off from. Is it possible to have the shaft 180degrees out...in rotation when re fitting butterfly etc.... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 24, 2014 Share Posted October 24, 2014 When you get it running store a log of it at key on, engine off, then idling, and during a brief test drive, then you can refer to a known good set of figures for sensor outputs if something else occurs. I think you need someone better qualified with a Syvecs to advise further, I don't want to get you into a bigger fix. Sort of wiring up the TPS sensor backwards I can't see you could have if far out if you ( quite correctly) marked the original positions. Good luck, I am sure someone better qualified could view the logging and pretty much see what's happened from them. Have you actually attempted to create a log file yet? Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 24, 2014 Author Share Posted October 24, 2014 I have but to no avail.i have downloaded the basic manual but cant seem to get the file to save to my laptop from sview... I will reset and pull logs tomorrow see if any other faults are present again. Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted October 26, 2014 Author Share Posted October 26, 2014 Hi guys right i think ive sorted it.whilst looking to something really in depth i missed the fact that the small throttle dampner on the throttle body was holding the throttle open when you blip the throttle as it was wound too far in.adjusted the car runs better.... Its intercooler pipe is away being modified atm so i cannot run it properly but all seems a hundred times better than the start of the post. I will put some pics up when the intercooler pipe is back Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.