barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 Have you done the usual spark/fuel check? Next step, check the sensors are plugged all plugged in. yep checked fuel delivery,spark and all sensors are connected.nothing much i can do now until battery is charged. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted May 9, 2010 Share Posted May 9, 2010 hook it up to you van on leads with the van running and keep trying Quote Link to comment Share on other sites More sharing options...
little num Posted May 9, 2010 Share Posted May 9, 2010 can promise its a good engine mate, cant understand why it wont fire up, unless you missed a plug or somthing. Quote Link to comment Share on other sites More sharing options...
Nic Posted May 9, 2010 Share Posted May 9, 2010 Plug leads all the correct way around and distributor cap on correctly? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted May 9, 2010 Share Posted May 9, 2010 Check all the fuses aswell mate . One may have poped with everything being taken in and out so much. Also make sure the relays are switching Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 nothing was removed.just droped it in as it was.will try again tomorrow. Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted May 9, 2010 Share Posted May 9, 2010 Does it seem like same issue as the previous engine that wouldnt fire up? Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted May 9, 2010 Share Posted May 9, 2010 Other engine fired up ok it had oil preasure problems though Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 (edited) been messing around with it again. when the ignition is turned on the plug will spark when earthed when cranking no spark what so ever. another thing strange is when you turn on the ignition the cam belt goes backwards slightly. i have changed dizzy cap,leads,new rotor arm,coil,ignitor.i have now run out of ideas. when fitting the engine and wires the main cable going to the altinator shorted out and sparked,could this of caused a problem somewhere,the fuses in the engine bay and under the dash on the drivers side are all fine. Edited May 9, 2010 by barneybrendan (see edit history) Quote Link to comment Share on other sites More sharing options...
trinitom Posted May 9, 2010 Share Posted May 9, 2010 been messing around with it again. when the ignition is turned on the plug will spark when earthed when cranking no spark what so ever. another thing strange is when you turn on the ignition the cam belt goes backwards slightly. i have changed dizzy cap,leads,new rotor arm,coil,ignitor.i have now run out of ideas. when fitting the engine and wires the main cable going to the altinator shorted out and sparked,could this of caused a problem somewhere,the fuses in the engine bay and under the dash on the drivers side are all fine. Do you have a spare ecu? if so give it a try. Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 Do you have a spare ecu? if so give it a try. dont have one will ask around to see if i can get hold of one. Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted May 9, 2010 Share Posted May 9, 2010 Bloody hell mate realy hope its someting simple im out of ideas Ill call round and check behind dash when i had it off for gauge Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 Bloody hell mate realy hope its someting simple im out of ideas Ill call round and check behind dash when i had it off for gauge its driving me around the bend as all i had to do was fit the tensioner bracket and take it to afr.maybe the idea of charging is cursed. Quote Link to comment Share on other sites More sharing options...
little num Posted May 9, 2010 Share Posted May 9, 2010 been messing around with it again. when the ignition is turned on the plug will spark when earthed when cranking no spark what so ever. another thing strange is when you turn on the ignition the cam belt goes backwards slightly. i have changed dizzy cap,leads,new rotor arm,coil,ignitor.i have now run out of ideas. when fitting the engine and wires the main cable going to the altinator shorted out and sparked,could this of caused a problem somewhere,the fuses in the engine bay and under the dash on the drivers side are all fine. Id check to make sure you have 12v at the main lead that shorted as it should always have 12v, if you have 12v then i cant see it being a fuse. As for the engine turning backwards when you turn the ignition on i cant really see how it can unless the starter is doing somthing. you say you have a spark then the plug is earthed, i take it this is when your turning it over on the starter, if you have a spark and fuel then i see no reason for it not to start Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 Id check to make sure you have 12v at the main lead that shorted as it should always have 12v, if you have 12v then i cant see it being a fuse. As for the engine turning backwards when you turn the ignition on i cant really see how it can unless the starter is doing somthing. you say you have a spark then the plug is earthed, i take it this is when your turning it over on the starter, if you have a spark and fuel then i see no reason for it not to start if ive got the plug earthed on the body when i turn on the ignition i get a spark,then when i start cranking no spark. im going to video the engine turning backwards slightly when i turn the ignition on,i have never seen this on any car before. will check that i have 12v on the main lead aswell. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 9, 2010 Share Posted May 9, 2010 The plugs firing when the ignition switch being turned on i have seen before, but i can't remember if its abnormal, but it may explain the engine turning backwards, as if there is some unburnt fuel in a cylinder it cold partially fire and push the engine the wrong way. There is obviously something in the ignition circuit that is wrong if its not firing on cranking, so the first thing to check is whats happening with the wiring that is involved in the cranking/start phase. Have you still got a piggyback connected? Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 The plugs firing when the ignition switch being turned on i have seen before, but i can't remember if its abnormal, but it may explain the engine turning backwards, as if there is some unburnt fuel in a cylinder it cold partially fire and push the engine the wrong way. There is obviously something in the ignition circuit that is wrong if its not firing on cranking, so the first thing to check is whats happening with the wiring that is involved in the cranking/start phase. Have you still got a piggyback connected? the map 2 is still connected. Quote Link to comment Share on other sites More sharing options...
jagman Posted May 9, 2010 Share Posted May 9, 2010 Sounds electrical/earth problem, the starter has reverse current flow, it uses the engine as an earth return,so the engine is not earthed to the battery, in fact probably the opposite!! Check your leads and connections especially at the starter Quote Link to comment Share on other sites More sharing options...
michel lane Posted May 9, 2010 Share Posted May 9, 2010 Just been reading this thread, sounds like you are having some bad luck here. i thought i would give some input on what i have knowledge on in the past. 1: The map ecu2- do you have the ecu set on map or maf , is it intercept or eliminate mode . I think you need to be on maf intercept as it uses a maf sensor . Do you still have the maf installed ? or are you running purely on the the mapecu2 map sensor ?. 2: When you changed the engine over , did you connect the wiring harness that goes on the left side of the engine bay beneath the intake manifold to an earth ? . Many people tend to miss this out as they think its just a plastic connecter and a brass insert .This is one of the main earthing poits for the stock ecu . what base map are you using ? if you are using the mapecu forum 550cc injectors version then look for the N/A version notthe TT version and make sure you still have the maf installed . 3: A word of advice, the silicon connectors you are using are the worse ones. As they get warm , they become very soft and just fall off . If you noticed there are no reinforced braid on them, looks like the ones provided with a universal pipe kit. hope this helps. Quote Link to comment Share on other sites More sharing options...
jagman Posted May 9, 2010 Share Posted May 9, 2010 If the power has swapped then the engine is live not earth,so "grounding" the plugs is in fact powering them etc Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 Sounds electrical/earth problem, the starter has reverse current flow, it uses the engine as an earth return,so the engine is not earthed to the battery, in fact probably the opposite!! Check your leads and connections especially at the starter going to take it all off tomorrow and reconnect all the connectors again Just been reading this thread, sounds like you are having some bad luck here. i thought i would give some input on what i have knowledge on in the past. 1: The map ecu2- do you have the ecu set on map or maf , is it intercept or eliminate mode . I think you need to be on maf intercept as it uses a maf sensor . Do you still have the maf installed ? or are you running purely on the the mapecu2 map sensor ?. 2: When you changed the engine over , did you connect the wiring harness that goes on the left side of the engine bay beneath the intake manifold to an earth ? . Many people tend to miss this out as they think its just a plastic connecter and a brass insert .This is one of the main earthing poits for the stock ecu . what base map are you using ? if you are using the mapecu forum 550cc injectors version then look for the N/A version notthe TT version and make sure you still have the maf installed . 3: A word of advice, the silicon connectors you are using are the worse ones. As they get warm , they become very soft and just fall off . If you noticed there are no reinforced braid on them, looks like the ones provided with a universal pipe kit. hope this helps. 1.apparently it is using the mapecu 2 internal map sensor. 2.not 100% sure i know what connector you are on about. i havnt got a clue what base map is on it as i had it fitted when it was still na,but never got given any software ect from the tunners. 3.i am aware of the connectors,they are cheap rubber ones.didnt want to spend out loads on silicone until i new the set up worked.just want it running so i can get it mapped properly then fit better quality parts. Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 If the power has swapped then the engine is live not earth,so "grounding" the plugs is in fact powering them etc that would make sense.i will be removing all the intake and wirring then refit it all again to see if i have gone wrong somewhere, Quote Link to comment Share on other sites More sharing options...
jagman Posted May 9, 2010 Share Posted May 9, 2010 the main bat positive goes to the starter, if the connection is askew and touching the starter case its now live(or lead trapped/chaffed -something like that ,probably why battery discharged rather quickly Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted May 9, 2010 Author Share Posted May 9, 2010 the main bat positive goes to the starter, if the connection is askew and touching the starter case its now live(or lead trapped/chaffed -something like that ,probably why battery discharged rather quickly the connector was a bitch to get on.will pull the starter out and check that,just started to get the lights out of the shed to start taking it all apart. Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted May 10, 2010 Share Posted May 10, 2010 check that wire we resolderd is right at the main switch mate Quote Link to comment Share on other sites More sharing options...
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