j3rk Posted January 6, 2008 Posted January 6, 2008 (edited) Hello you lot. Hows tricks? Dont know if anybody can help me out here but i seem to have a slight hesitation on the car. It happens mostly in 2nd and 3rd gear around 2500 revs. Ive had to go down the route of possible causes and elimination and so far i've cleaned and eliminated the MAF (apexi filter fitted), cleaned and eliminated the pressure sensor, cleaned and eliminated the boost solenoid which is HKS along with all relevant pipework and cleaned and eliminated a very dirty IDC. I've also changed two of the coil packs on the drivers side. Car is running absolutely superb now but i still have this hesitation. Im thinking it could be the other two coil packs as only changed two and the ones that came out were brittle as f******k so maybe the other two need replacing? Or the IDC? Hope one of you guys can shed some expertise on this? Oh and can anyone get hold of any coilpacks or IDC depending on the problem? Oh yeah and by the way its a 93 WRX import Edited January 6, 2008 by j3rk
dazzlers82 Posted January 6, 2008 Posted January 6, 2008 Hello you lot. Hows tricks? Dont know if anybody can help me out here but i seem to have a slight hesitation on the car. It happens mostly in 2nd and 3rd gear around 2500 revs. Ive had to go down the route of possible causes and elimination and so far i've cleaned and eliminated the MAF (apexi filter fitted), cleaned and eliminated the pressure sensor, cleaned and eliminated the boost solenoid which is HKS along with all relevant pipework and cleaned and eliminated a very dirty IDC. I've also changed two of the coil packs on the drivers side. Car is running absolutely superb now but i still have this hesitation. Im thinking it could be the other two coil packs as only changed two and the ones that came out were brittle as f******k so maybe the other two need replacing? Or the IDC? Hope one of you guys can shed some expertise on this? Oh and can anyone get hold of any coilpacks or IDC depending on the problem? Oh yeah and by the way its a 93 WRX import should always replace coil packs with 4 in my opinion mate post this in tecnical an someone should be able to help
j3rk Posted January 6, 2008 Author Posted January 6, 2008 should always replace coil packs with 4 in my opinion mate post this in tecnical an someone should be able to help Whoops. sorry daz mate. still gettin hang of this site lol
Jolly Green Monster Posted January 6, 2008 Posted January 6, 2008 should always replace coil packs with 4 in my opinion mate agree 100% you mention the boost solenoid as hks? does it have a boost controller fitted?
j3rk Posted January 6, 2008 Author Posted January 6, 2008 (edited) agree 100%you mention the boost solenoid as hks? does it have a boost controller fitted? Yes its the HKS EVC6. Before you say check the pipework ive done that and as far as i can tell there isn't any leakage. i like these emoticons . TDI did the set up for me too jolly mate. Edited January 6, 2008 by j3rk
dazzlers82 Posted January 6, 2008 Posted January 6, 2008 Yes its the HKS EVC6. Before you say check the pipework ive done that and as far as i can tell there isn't any leakage. i like these emoticons . TDI did the set up for me too jolly mate. what other mods you done before this started an have you checked plugs an gaps
j3rk Posted January 6, 2008 Author Posted January 6, 2008 (edited) what other mods you done before this started an have you checked plugs an gaps Apexi power intake and HKS FCD. Apexi i fitted myself but the FCD was put in yesterday but it was still doing it even without the FCD. I bet its those poxy coilpacks! Daz ive no idea how to check the sparks mate otherwise i would Edited January 6, 2008 by j3rk
20withascooby Posted January 6, 2008 Posted January 6, 2008 one see if u can see any sparks jumping from them to metal anywhere thats what i was told to do
j3rk Posted January 6, 2008 Author Posted January 6, 2008 one see if u can see any sparks jumping from them to metal anywhere thats what i was told to do Ok where are the spark plugs situated then? What? I'm not a mechanic lol
20withascooby Posted January 6, 2008 Posted January 6, 2008 im not a mechanic either but was told to look down where the coil packs are and if one is cracked then u wud see a little spark coming from it try asking a guy on here called deano666 i htink his username is he does stuff to alot of ppls cars on here he myt be able to help
j3rk Posted January 6, 2008 Author Posted January 6, 2008 im not a mechanic either but was told to look down where the coil packs are and if one is cracked then u wud see a little spark coming from it try asking a guy on here called deano666 i htink his username is he does stuff to alot of ppls cars on here he myt be able to help ok will do.
luke_clifton Posted January 6, 2008 Posted January 6, 2008 Lambda(O2) sensor, abit dirty or malfunctioning?
dazzlers82 Posted January 6, 2008 Posted January 6, 2008 Lambda(O2) sensor, abit dirty or malfunctioning? was thinking this my self have you tried running with it disconnected ?
j3rk Posted January 6, 2008 Author Posted January 6, 2008 was thinking this my self have you tried running with it disconnected ? Ill go and give it a go in a bit. OLder cars are such a pain!
Jolly Green Monster Posted January 6, 2008 Posted January 6, 2008 new set of coil packs and spark plugs need by the sound of it..
j3rk Posted January 7, 2008 Author Posted January 7, 2008 (edited) Right ive opened up the sensor. Seized it was. Proper nightmare to undo. Used a jack and stilsons to rotate it. The sensor itself is black at the headers and the connector is corroded. Anybody got a spare lambda they wanna get rid of for a price? My MOT is on the 12th and im gonna need one. Edited January 7, 2008 by j3rk
Deano 666 Posted January 7, 2008 Posted January 7, 2008 Try a new o2 sensor, get the engine up to normal runing temp, if the problem is still there after a good run. then remove your coil packs, remove spark plugs, check gaps on plugs, NGK should be between 0.6mm or 0.7mm. i recommend changing them for a new set if you do not know when they where last changed. dont forget to check gaps on new plugs before fitting them
j3rk Posted January 10, 2008 Author Posted January 10, 2008 Cheers guys. much appreciate the advice. Turned out was the lambda. Replaced it and all is well. Even passed the MOT with a full decat after fitting!!! Sparks were clean as anything. Had been changed about 5 months ago so still nice and clean and were gapped correctly. Cheers again fellas.
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