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Toyota altezza not throttling smoothly and lags when just moving off and then shoots off after a couple of seconds. cat converter was removed but problem still exists

Engine was overhauled and then problem started. timing was off and was adjusted a couple weeks after. now there is a lag when you move off and then shoots after a while. the throttling is up and down, not smooth at all.

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
  • 75822 Answers

SOURCE: speedometer sticks

There is a way, have a friend drive at 30 mph and raise there hand at that speed, you follow them and make a note of the RPM, from there is is simple math to figure out the other speeds and RPM reading.

Posted on Sep 26, 2008

  • 119 Answers

SOURCE: toyota diesel engine very rough on start but then runs smooth

Check the heater plugs normaly when the engine is cold heater plugs work to heat up combustion chamber then starts easy,also long raning fuel filter mybe so change the fuel filter.

Posted on Nov 14, 2008

  • 5 Answers

SOURCE: i have a 1994 gmc safari.It seems to have a smooth idle at times

Im not sure if you got it fixed yet! It could possibly be idle air control valve. But here some more suggestions! I had a 94 Safari van 4.3 liter I was working on for about three days and I finally figured out what was wrong with it. It would run fine for a couple minutes and as soon as I hit the gas and let off it would surge, but anyways I ended up changing the distributer, after the fuel pump and filter, mass air flow sensor, egr valve, idle air control valve, map sensor, and ignition module. So that might sove the problem if you were on the same track with it as I was. Hope this helps ya!

Posted on Mar 09, 2009

  • 1 Answer

SOURCE: My Volvo 850 won't run on idle, it keeps coughing and shutting down.

my volvo won't run on idle, it keeps coughing and shutting down.

Posted on Apr 23, 2009

  • 1 Answer

SOURCE: 1997 Mazda dies when warm - runs smooth when cool

possibly a bad module------cracked---or???? In any case you may get expansion as engine compartment warms up----module shuts you down. Sometimes really hard to diagnose and just putting in a new module is "spendy"----especially if it turns out not to solve the problem!

Posted on May 12, 2009

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