poor performance
hello guys i am there today cuz i got real problems about one car
i am professional tech i own my self garage / i register this forum to know if some one can help me about this hyunai i am french canadien so if some word are not properly i be sorry ! ETA |: hyundai accent 2005 // first step in my story i got 2 month ago job to install 2.0l elentra inside this accent job done all go well i set up performance clutch header performance down pipe and cata t-belt kit all seal and gasket plug wire ect.. / / car run properly and perfectly but engine come from local scrap yard and month later see this engine burn internal oils smoke really bit but 1 liter in month for about 700km then whe ask for other engine from scrap yard on warenty i swap all t-belt kit and buy new seal for crank front and back and cams seal i swap engine agains all go well and start back new engine but bit rought idle so i make breakcleaner test and find intake manifold gasket leak i remplace and start back engin run real better me bit rought is not running like new engine but any way i send it to my customer after i make few road test and put this car up tu 180km/h in the 4 speed engine have torqu and good performance my customer get is car and have to make 45km to get is home so by the way get gaz from local big gaz station and half way to is home car stop to get performance... what happen ? nothing wrong with the driver .// get back car here and try to get high speed with nothing go engine can't make is tire spin on wet street and can't get 140 km/h with ----------------------------------------------------------------- now test on genesis scanner no code see all is spec from t-belt ok timing chain ok after remplace it it whas loose then where come my rought idle 02 sensor up ok 02 sensor dwn ok after remplace it he was stuk 0.45v gaz pressur ok 55lbs gaz qty ok about 1 gallon / minute tps ok 0.3v close 0% and 80% full trottle and! full trottle swich on engine compression 150lbs on 4 cyl i whas tinking about Cams sensor is fructuat but go up to 6.5-7 volt not supose to map sensor tell me 11 in.hg but if i remove from intake and i set up my gage is telling me 17 in.hg // idle i remplace it but same i try coils pak fuel rails and still have no change i look back timing mark on crank and set rod on piston to see if is really tdc / ok check ground on engine /// bad bad ass fix ground but still have high resistance clean it from battery to body battery to engine starter bolt tower to intake manifold add 1 from firewall to intake manifold and left tower to front of head i think is have power crossing some where engine off 0.1 ohm engine on 35-55 ohm then test ecm battery voltage ignition voltage and all ground look like bad ground here too but only when engine runnig and after make some test i find sensor ground problems (i think) and 5v problems (i think) white wire from ecm pin #33 to map have 2.5 v ( should be 5 not ?? ) voltage should be from the ecm i try 2 other ecm and still have same problem by volt and performance i have no more idea where i should look at and my head will blow out i have car here from 5 day .. try and look and try and look // can some one have idea if some electric positive jump across ground in engine can make this but i did not find where is from // car stop to get performance in road -------------------------------------------------------------------- ty for your patience to read if you can help me as well ty anyway else !!! if you need more information about anything i can get you all info about anything car can't get 140 kmh :( |
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