Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: ngrainqey on 08 November 2008, 20:33:51
-
if anybodys looked in cars for sale/wanted then they'll know iv been a right brain stew spoon bender and posted a thread in there about my 2.5 which wont start...
it turns over fine and with throttle open fully turns over very fast but doesnt want to start....
the other day i sprayed carb cleaner in the throttle body and when i tried starting it a couple of mins after doing that it started and then died very quickly..
i'v changed the crank sensor and i'v also changed the timing belt as the tensioner was buggered(just put some used but in good condition belt and tensioners on) as a stop gap till the end of this month
do you think it's the spark plugs or do you think it's more likely the fuel?
i also had the multiram off at one point and some spray/gases sprayed out of the throttle body as it fired on one occasion- would that have been a backfire or something similar?
it has exhaust gases coming out when it's turning over at an increased speed which is only when you have the throttle open
can somebody help?
thanks
-
any codes?
http://www.omegaowners.com/forum/YaBB.pl?num=1189022687
-
wants resetting really, 19 cranksensor 94 hall sender and 21 i think not sure without looking what 21 is
-
If the cranksensor is down- change it.
It reports to the ECM and with out that signal it aint gona start. :'(
-
If the cranksensor is down- change it.
It reports to the ECM and with out that signal it aint gona start. :'(
already changed it though matey
it started briefly when i had sprayed carb cleaner into the throttle body which suggests no fuel getting in via injectors maybe?
-
wants resetting really, 19 cranksensor 94 hall sender and 21 i think not sure without looking what 21 is
21 Throttle position sensor. Retrace your steps time i think?
-
OK. But the hall effect is the cranksensor ?
You need to check the if you have fuel pressure by turning on the ignition and loosening the high pressure fuel rail connection.
Or pressing the schrader type valve at the back of the plenum.
-
schrader type valve?
....well i'v changed the crank sensor so doubt it can be that, could try another one i have and see what happens- one of the two i have seen on a car running fine just for reference- i just thought it seemed odd that it actually started the other day when i'd sprayed carb cleaner in but refuses to start with just the fuel and cranking...
really i could do with the fault codes resetting :(
-
oh yeah... having just read the fault codes terms for 21... the throttle.p.s just tells the ecu how much boot your using
would it stop it starting?
and where is it :P
it's on a '95 2.5 so wouldnt have thought it had one tbh
thanks
-
http://www.omegaowners.com/forum/YaBB.pl?num=1226168481
Second picture down shows dust cap on fuel rail :-/
-
http://www.omegaowners.com/forum/YaBB.pl?num=1226168481
Second picture down shows dust cap on fuel rail :-/
ooo ok then, im guessing you just take dust cap off and there's a button to press
-
:y
-
ok so if fuel smelling fuel spirts out then its an injector problem?
thanks for the replies
-
I doubt if any thing will spurt out as its not even trying to start but you need tobe sure.
If nothing comes out check the fuel filter is on the right way around and it clear of crpa
If its fitted correctly and clear take a look at the fuel pump oppperation
-
you have checked the fuses havent you ?????????????
-
you have checked the fuses havent you ?????????????
ok then matey i'll have a nosey at the fuel filter and that dust cap tomorrow... tbh no i havn't checked fuses :P
i'll have a look in the morning and post it up then for your investigation lol
thanks :y
-
3.0 cams are on their way to you mate so you had better get it going soon! lol
-
i know chris... it's all one mad rush ahha!
can anybody point me in the direction of the relay- obviously it's in the relay box and the fuel pump fuse is the 3rd one in from the right in the middle row afaik
how easy is the fuel pump to get out?
thanks
-
oh yeah... would a hole in the pipe for the secondary air injection cause it to not start?
it's not on the pipe going to the one way valve but on the other side of the injector if that makes sense (right on the bend in the pipe)
tbh didnt think it was major
thanks
-
Its a pretty big hole and bound to cause some sort of air leak...certainly cant be helping! lol Got a replacement here if you need it...
-
oh yeah... would a hole in the pipe for the secondary air injection cause it to not start?
it's not on the pipe going to the one way valve but on the other side of the injector if that makes sense (right on the bend in the pipe)
tbh didnt think it was major
thanks
it wont matter alex :y
-
Update! update! update :P
riiight then, after some relay masticating and also taking pipes off the fuel pump... its getting fuel! buuuut... it has random missfires on cyl 1 and i think 5... had oily smoke i think it was coming off 5 and 6 at one point (i think it was oily)
anyway had the plenium off to see a big blue flame come out of the inlet haha!
it sounds like its running on about 3 cylinders lmao! not good :P
it's compressing and then decompin on a few cylinders and then firing on a couple so turning over with a couple of bumps of firing.
do you think it's dispack or check spark plugs first? check for oil in plugholes?
thanks
-
Wellit certainly cant hurt to check for oil in the plug holes anyway as its easy enough to do??
Are you sure the timing is right Alex?
Did you replace the head or is it the old one?? Might be the heads knackered?>?
-
Wellit certainly cant hurt to check for oil in the plug holes anyway as its easy enough to do??
Are you sure the timing is right Alex?
Did you replace the head or is it the old one?? Might be the heads knackered?>?
i'm on about going to check the oil in plug wells today..
the only reason the timing would be out would be because some moron took the cams out and hasnt bothered to put the pulleys onto the cams properly.
is there a possibility its the dispack/ht leads that are caputted making it spark at the wrong time?
the only reasons i can think of a backfire are... the valve is majorly bent alloying the exploding gases to fire out of the inlet manifold lol! or that its sparking at the wrong time because of the dis pack
thanks
-
is the coil pack ok , you can use ht lights to check spark at plugs and you can use a noid light to check injection pulse .
-
well im thinking the dispack/coil pack could be fubar'd
i dont have a noid light haha!
there's defo fuel going to the fuel rail and theres defo fuel going into atleast cylinder 1
-
wouldnt it be alot easier to just buy a 2.5!
-
wouldnt it be alot easier to just buy a 2.5!
i have bought a 2.5 so i'v got a 2.0 shell mostly stripped, a 2.5 lump and a black 2.5 ;) haha!