Josh Posted August 24, 2008 Share Posted August 24, 2008 Ok so Ive been tried starting the capri up (efi turbo pinto) and it wouldn't start. Narrowed down the problem and the injectors aren't squirting like they should be, they are more or less just dribbling out fuel and one isn't even firing anything out. So blew the injectors with a compressor etc tried again and it won't fire. Could it be the computer needs adjustment to make them fire or the injectors buggered? Anyone else come across this prob/any ideas to try? Caught fire this arvo after turning it over and had no fire extiungusher so chucked water over it to get it out and water = down the injector holes into the bores. Took the plugs out and sprayed crc and just cranked it over to push the water out, is this sufficent enough to save it? Shit I'm having some shit luck with it at the moment.. Quote Link to comment Share on other sites More sharing options...
cute wee gem Posted August 24, 2008 Share Posted August 24, 2008 Fuel pump all good? If there isn't any pressure they won't squirt properly. Taking plugs out and turning it over should be fine. any left over water will burn up pretty quick once she starts Quote Link to comment Share on other sites More sharing options...
Josh Posted August 24, 2008 Author Share Posted August 24, 2008 Yea pump is all sweet and squirting loads of fuel through the rail but the injectors just don't seem to be taking it for some reason Quote Link to comment Share on other sites More sharing options...
Testament Posted August 24, 2008 Share Posted August 24, 2008 Yea pump is all sweet and squirting loads of fuel through the rail but the injectors just don't seem to be taking it for some reason have you checked the pressure though? flow means nothing if its not at running pressure. Quote Link to comment Share on other sites More sharing options...
peteretep Posted August 24, 2008 Share Posted August 24, 2008 yeah probably saying the obvious but your old side drafts would have had a low pressure pump, and your new engine with efi needs a high pressure pump Quote Link to comment Share on other sites More sharing options...
Josh Posted August 24, 2008 Author Share Posted August 24, 2008 Havent checked the pressure, will look into that and hopefully eliminate that to. And retep it's running the low pressure pump as a lift pump for the surge tank and a 450hp external pump after that to the fuel rail. So pretty sure it's getting enough pressure but will check when I get a chance, cheers. Quote Link to comment Share on other sites More sharing options...
esky 73 Posted August 24, 2008 Share Posted August 24, 2008 how long have your injectors been unused? blowing them with a compressor wont clean them, i had a similar prob with my cossie and the injectors got sent away for cleaning and came back mint Quote Link to comment Share on other sites More sharing options...
cute wee gem Posted August 24, 2008 Share Posted August 24, 2008 Try putting some random injectors in there to see if they are any different. Is there some form of base tune on the ecu? Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted August 24, 2008 Share Posted August 24, 2008 You should hear the injectors clicking. The easy way to test them assuing you are using the Link ECU still is to plug a spare dizzy in and sping it by hand and listen to the injectors. With out the engine cranking you should hear them clicking clearly. Beaware that everytime they click they will be spitting fuel unless you disable the fuel pump Quote Link to comment Share on other sites More sharing options...
Gaz Posted August 24, 2008 Share Posted August 24, 2008 Also you can buy proper injector cleaner. Quote Link to comment Share on other sites More sharing options...
Spencer Posted August 24, 2008 Share Posted August 24, 2008 injectors high or low impedance? check the ecu is firing properly with a led and if there old injectors get them cleaned and tested properly doesn't cost much Quote Link to comment Share on other sites More sharing options...
Josh Posted August 24, 2008 Author Share Posted August 24, 2008 Yea there should be a base tune as the motor was running with that ecu and those injectors. The injectors have been dormant probably over 1 and a half years now. Might send them away to get them cleaned then if it has worked for someone here. Where did you send them? Keen to try your idea Nismo, can just pull the fuse for the pumps, don't have a spare dizzy on me though, have to see if someone has a spare here. Haven't heard them clicking, but probably just drowned by the turning over of the engine, mind you they have been squirting but at really really lame rate. I'll start trying the ideas tomorrow hopefully Quote Link to comment Share on other sites More sharing options...
Spencer Posted August 24, 2008 Share Posted August 24, 2008 Ive had the issue of blocked injectors 9 out of 12 i tried were so gunked from the shit old fuel in them they couldnt clean them after this fault i get them cleaned on every engine I buy its a gay fault. I dropped them to the local diesel place in hams they have the ultra sonic cleaner and test rig will be one down your way how I'd check this fault is pull out the injectors send them to be cleaned even if there not the fault its peace of mind if they've been sitting. Normal injector cleaned additive wont do shit if there real caked up Just test the pumps by pumping them into a bucket for now off the return end of the rail Actually test the ecu is firing with a led. Plug in the fresh injectors when they come back and fire it up Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted August 24, 2008 Share Posted August 24, 2008 have you got a good battery? what kind of link is it? g3? if so can test the injectors with out engine going. is there 12volts at injector plugs with key on? but fuel pressure was the first thing that popd into ma head. Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted August 24, 2008 Share Posted August 24, 2008 Keen to try your idea Nismo, can just pull the fuse for the pumps, don't have a spare dizzy on me though, have to see if someone has a spare here. Haven't heard them clicking, but probably just drowned by the turning over of the engine, mind you they have been squirting but at really really lame rate. I'll start trying the ideas tomorrow hopefully If you can get a spare dizzy just put it in a drill, plug it in to the loom, turn the car on and crank it . It's a really good way to check a Link set up as this is how the ECU sences the engine rotation. Doing this you can check you have a clean rpm signal from the dizzy, that your ignition and injectors are firing and the fuel pump is running. Don't run you injectors for over a minute as part of the fuels job is to cool them. Quote Link to comment Share on other sites More sharing options...
Josh Posted August 27, 2008 Author Share Posted August 27, 2008 If it did happen to be the fuel pressure, how do you get it higher? Also I realise the o2 sensor isn't connected up, could this be a cause to the prob at all? Quote Link to comment Share on other sites More sharing options...
Gaz Posted August 27, 2008 Share Posted August 27, 2008 Adjustable Fueal Pressure Reg to wind pressure up. Have heard not to buy a cheapie. Sard seem to do good ones. No 02 it should still run, would run rich tho so thatd give more gas.. Gaz Quote Link to comment Share on other sites More sharing options...
Testament Posted August 27, 2008 Share Posted August 27, 2008 a factory boost referenced bosch one > aftermarket they have much better control, better seat materials/geometry etc. Quote Link to comment Share on other sites More sharing options...
Spencer Posted August 27, 2008 Share Posted August 27, 2008 how have you narrowed it down to pressure? you said they wern't spraying piss all? you should be able to get a basic visual your pump is pissing out gas from the return this should be enough to get them firing properly bar actually gauging the rail pressure. Have you put a meter over them to check impedance. You need to describe your system abit more but this should be real easy to fix Quote Link to comment Share on other sites More sharing options...
Josh Posted August 28, 2008 Author Share Posted August 28, 2008 Yea pissing out fuel through the return.. Havn't checked impendance on them though, next on list I guess assuming I do have fuel pressure, coz I'm 90% sure I do.. Quote Link to comment Share on other sites More sharing options...
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