steendp 0 Posted September 6, 2007 Hi. I have just changed engine from a cat'ed 1.9 8v (Motronic) to a 1.9 16v using the 8v engine loom, but now it wont fire up . I'll try to explain what I have done step by step. Switch engine, using same loom. Solder wires from knocksensor to pin 11 and 30. Shield was soldered to pin 14 (earth). Change ECU to a mi16 (ending in 161). When trying to start it, it makes a single pop once in a while, but nothing close enough to get it running. Change the ECU back to original 1.9, same result. Detach the knocking sensor. Same result. I then checked for spark (using a device like this: http://www.biltema.dk/Archive/Product_imag...ge/15-142_l.jpg ) All was okay (one was perhaps a little weak, but still, it should be able to make it start up). I checked for fuel (Disconnected ignition, turned over the engine, checked all plugs for petrol). What should be my next step? I really cant figure out exactly what to do. Could it be the spark leads that is incorrectly mounted? I have crosschecked with my 309 and the are arranged in the same way. Is it perhaps possibly to mount the rotor 180 degree off? Any suggestions are greatly appreciated! Share this post Link to post Share on other sites
steendp 0 Posted September 6, 2007 Is it perhaps possibly to mount the rotor 180 degree off? Instead of asking this kind of question I should have tried to rotate the leads 180 degree, so I did. Unfortunately without any luck. Share this post Link to post Share on other sites
steely205 0 Posted September 6, 2007 Have you heard the MI engine run? Have you fitted a new timing belt, if so have you checked the timing? If you have never heard it run or it has been standing for a while I would be inclined to do a compression check. Share this post Link to post Share on other sites
steendp 0 Posted September 6, 2007 (edited) Sorry, I should have mentioned this. A year ago (or so) I had it running on the original Motronic ECU. I'm on my way out to perform a (cold) compression test. Edited September 6, 2007 by steendp Share this post Link to post Share on other sites
cybernck 400 1 Cars Posted September 6, 2007 hmm, for some reason, currently there are a few people on the forum that have converted from JAZ to J4Z, using an altered JAZ wiring loom and they all seem to have problems getting their Mi16 engines to run . you should maybe consult other similar topics too (do a search). Share this post Link to post Share on other sites
steendp 0 Posted September 6, 2007 I had it running earlier on the standard ECU and the only difference should be ICV and knocksensor. It should be able to start without the knocksensor according to various posts. Now I cant even start it with the original ECU. BTW I have around 5 bookmarks regarding the loom-topic I made a compression test last time and it was fine then. This time it has no compression on 1 cylinder, so I guess I'll have to put in the old engine to be able to race on saturday . I hope I can make it although the motivation is pretty low at the moment. I would have thought it was able to start on 3 cylinders though. Share this post Link to post Share on other sites
steely205 0 Posted September 6, 2007 I would maybe try and coax the piston rings back into life with a little oil down the bore. Share this post Link to post Share on other sites
cybernck 400 1 Cars Posted September 6, 2007 I guess I'll have to put in the old engine to be able to race on saturday lol... we also always have to intensively work in the last 48h before races . Share this post Link to post Share on other sites
