 Fuel pump info needed |
 Aug 2, 2014 - 7:17 AM
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Enthusiast Joined Jun 2, '14 From Cheshire Currently Offline Reputation: 0 (0%)  |
OK here goes, I am at the stage where I am going to scrap the car I am so sick of it. Have posted on another forum but had no luck so hoping someone can give me an idea.
The car is a 1995 convertible (uk) 2.0 gt manual which is the 3S-GE engine with 70,000 miles and full toyota service history. The symptoms are, from cold it will hesitate but not always straight away, could drive half mile before it does it. When it does I can have my foot to the floor and nothing happens. Then it surges and the car will run perfectly. EXCEPT if trying to drive at 20 or 30 mph it runs rough like its in the wrong gear. Driving at 35 and above it runs perfectly, Just to add to the problem, occasionally if I reverse and stop the idle will fluctuate and stall. Jumping the diag pins shows no faults! So far I have changed complete throttle body with sensors from a car that was known to run perfectly. Fuel filter, water temp sensor, air temp sensor, spark plugs, distributor cap, rotar arm, thermostat. As far as I can tell all vacuum hoses look OK I am stumped for ideas. Help appreciated. . This post has been edited by Fujifilm: Aug 28, 2014 - 2:57 PM |
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Sep 2, 2014 - 9:47 PM
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 Enthusiast  Joined Dec 3, '13 From Missourah Currently Offline Reputation: 0 (0%) |
sorry I lost this post for a couple days
If jumping the fuel pump to full power makes it work better you probably have a weak pump, so you'd replace the fuel pump itself. when you jump those pins you are giving it the full 12 volts. its a dc motor and so the computer adjusts the voltage from maybe 8v-12v as needed. you might read up more on it here http://bgbonline.celicatech.com/94_6gmanual/94_6gmanual.htm I would follow the step-by-step on the fuel system to be sure, maybe it could have something to do with the fuel pressure regulator. I wouldn't be afraid to replace the fuel filter again, both the regular one and the sock thingy if your system looks dirty. Do yourself a favor and always run Top Tier Gasoline. http://www.toptiergas.com/ also you can get a reman fuel pump from the factory brand, Denso, on Rockauto.com for about $90. which is a pretty sweet deal. This post has been edited by VavAlephVav: Sep 2, 2014 - 9:57 PM -------------------- Bust a Deal; Face the Wheel.
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Posts in this topic
Fujifilm Fuel pump info needed Aug 2, 2014 - 7:17 AM
IfWeChoose My car (7A-FE, 285k) had a very similar issue. It ... Aug 3, 2014 - 12:14 AM
Fujifilm QUOTE (IfWeChoose @ Aug 3, 2014 - 1... Aug 3, 2014 - 5:27 AM IfWeChoose Good luck with it all my friend! Keep us poste... Aug 8, 2014 - 12:08 PM mi645 check timing, check tps, check spark plugs, wires ... Aug 8, 2014 - 2:48 PM Timothy Did you ever retard your timing?(distributor). Thi... Aug 10, 2014 - 7:03 PM VavAlephVav I also say check the ignition timing by renting a ... Aug 10, 2014 - 9:39 PM Fujifilm Apologys for not getting back sooner...
Just to r... Aug 15, 2014 - 5:43 PM Special_Edy Injectors dont fail intermittent like that.
Check... Aug 16, 2014 - 10:59 AM Fujifilm QUOTE (Special_Edy @ Aug 16, 2014 - 11... Aug 16, 2014 - 11:32 AM VavAlephVav also, if your system was badly gunked up that clea... Aug 17, 2014 - 1:57 PM Fujifilm QUOTE (VavAlephVav @ Aug 17, 2014 - 2... Aug 22, 2014 - 10:34 AM Fujifilm After driving for a few days with the fp and B+ pi... Aug 28, 2014 - 3:10 PM neisenkr Fujifilm - did you replace the fuel pump?
Did it s... Nov 24, 2014 - 1:57 PM Smaay im not aware that the Celica has a fuel pump ECU t... Sep 3, 2014 - 12:21 AM VavAlephVav hmmm, I haven't had time to fully investigate ... Sep 3, 2014 - 12:40 AM |
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