Jason Posted January 23, 2007 Report Posted January 23, 2007 (edited) OK, so I'm having problem with my motors. So I'm starting this thread were people can throw ideas on what can be wrong. Ok its a 4agze - its got a big port intake (the NA one), a big throttle body that goes before the supercharger, its got standard cams, variable cam gears (looking into possible problem with these atm), its running a Megasquirt ecu, with ford EDIS ignition system ie coil packs and a 36 tooth trigger wheel with magnetic pick coil. (1 tooth missing) I've had to wire up the pick up sensor and everything else BUT ive got spark, ive got the injectors firing. Ecu is registering that it's cranking and showing rpm. Ok so theres my setup; now throw me some idea's about ANYTHING that could be wrong. Again anything that could be wrong. Including stuff like eg, fuel pressure to low, spark not firing right place. Mechanical problems Ok.... GO! PS it occasionally coughs and pops when I fiddle around with the injector opening times but ive tried tweaking it in these areas to no avail Edited January 23, 2007 by Jason Quote
Jason Posted January 23, 2007 Author Report Posted January 23, 2007 (edited) What is ford edis If you would really like to help - tunning guide If there anything think else that people would like to know just say, I'm really stumped. how would i got about finding if they were stiking? with out taking that head off Edited January 23, 2007 by Jason Quote
Des Posted January 23, 2007 Report Posted January 23, 2007 Take the valve covers off and get some one to crank it over and watch very carefully and you will spot it if its happening. Quote
Medicine_Man Posted January 23, 2007 Report Posted January 23, 2007 May sound like a stupid question but are the spark plugs firing in the right order? Haven't got the leads arse about? Quote
Jason Posted January 23, 2007 Author Report Posted January 23, 2007 (edited) yeah the coil packs are labled for super easy use :) what you mean by leads arse about? although i may try reversing them (wasted spark ) Edited January 23, 2007 by Jason Quote
pozman Posted January 23, 2007 Report Posted January 23, 2007 have you got any cold start or idle controllers on it, as when i got my ca18 in they were cusing problems left right and centre, when i unpluged them it started Quote
Guest Sbox Posted January 23, 2007 Report Posted January 23, 2007 (edited) Deleted Edited May 24, 2008 by Sbox Quote
Jason Posted January 23, 2007 Author Report Posted January 23, 2007 its a 'new' motor and it doesn't run, it doesn't start. Its running an aftermarket ecu (said all this before) so what car it came from is irrelevant back to head in a bucket..... feeling sik :) Quote
Jason Posted January 24, 2007 Author Report Posted January 24, 2007 (edited) how much would it effect starting if say...... the exhust cam was about 5 teeth advanced (5 teeth to far, wound it back) I say alot but it should atleast cough and splutter more? Edited January 24, 2007 by Jason Quote
Guest Sbox Posted January 24, 2007 Report Posted January 24, 2007 (edited) Deleted Edited May 24, 2008 by Sbox Quote
Jason Posted January 24, 2007 Author Report Posted January 24, 2007 havnt tried again, and btw its a non interferance engine :) Quote
Jono Posted January 24, 2007 Report Posted January 24, 2007 are the injectors the correct impedance for the megasquirt? what do the spark plugs look like upon inspection? Quote
Jason Posted January 24, 2007 Author Report Posted January 24, 2007 yes the MS will take any injector as long as you set it up right, which i didnt the 1st time. I will look at the plugs after trying to start tonight. Quote
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