Vauxhall Astra starting problem

Car: Vauxhall Astra
Variant: 1.6 sport
Model Year: 1999
Categories: Running Rough, Starting & Power Loss
i have a v reg astra 1.6 sport 16 valve ,,the engine has been replaced with a 1800cc before i bought the car ,,car has been running a bit jittery when driving under 30mph about 70% of the time,, over this speed it was fine ,my engine light is on 90% of my driving time i,ve fitted new plugs ,yesterday i drove to town when i got home i took out my key to lock my security gate ,cars alarm went off on it,s own,i turned off alarm but could not get the car to start ,my battery has a power indicator that was red meaning it was knackered since then i,ve bought a new battery car tries to start but wont catch any help would be greatly appreciated
Posted: Jun 22, 2013 (11 years ago)
Need to get the codes diagnosed, could one of many things, and a very long guessing game otherwise...
Posted Jun 22, 2013 (11 years ago)
thanks witty i was going to buy a new coil ,if this didn,t work i was then going to try a new starter motor can i buy a reasonable priced fault finding meter as i feel garages just rip us off
Posted Jun 22, 2013 (11 years ago)
Should be able to get a code reader off eBay for a reasonable amount....
Posted Jun 22, 2013 (11 years ago)
start with the simple things first when you turn the ignition on does the engine warning light come on solid or flash ? if its flashing then you have a transponder key problem and the chip may have fell out of the key has the key ever come apart? next does it crank over if yes does it have spark and can you hear the fuel pump run?try to eliminate as much as you can or it will be an expensive fix if you keep replacing parts you dont need to
Posted Jun 23, 2013 (11 years ago)
Witty ,,thanks very much for your help i checked all the variables the fuel pump is new ,was replaced when last owner installed the new engine ,plugs and battery also new ,i thought it might have been my ignition coil but even if that was knackered my car would still start but i would have a lot of backfiring ,i also done a few other checks and spent quite a few hours reading online ,i,m now 99% sure my prob is my crankshaft positioning sensor all the symptoms lead to this ,so yet again i give you my thanks you have been very helpful and it,s been greatly appreciated tc
Posted Jun 24, 2013 (11 years ago)
cars sorted seems my alarm going off messed up a few of my codes guy came to house with diagnostic machine ,checked car over reset codes n cars running great no longer giving me the kangaroo petrol symptoms either
Posted Jun 24, 2013 (11 years ago)

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