Question about 1990 Toyota Celica
Replaced fuel pump, o2 sensor, cleaned air intake with CRC as instructed by you guys, it seemed to run better,but only lasted a couple hours, we repeated process, but with same results. Still dies when put in reverse, stop lights ect. Weird thing I did notice was that check engine light goes out when I press accelerator. HELP!!
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Posted on Jan 02, 2017
you could have a short in your o2 sensor wire and there for its not reading.Get a shop to hook up a diagnotic scanner and read what they are doing so you can see if its a loss of comunication or not and then go from there.Also make sure it was factory replacement o2 sensors and not one of those multifit jobs.
Posted on May 02, 2009
Wow, great description...I suspect the catalyst is bad...(in the exhaust) but try this cheap fix.
go to Advance Auto Parts and buy a can of "SeaFoam" ($8) and following the directions add to fuel and drive for at least 100 miles...see if that helps...if not, have a mechanic look at the catalytic convertor/exhaust
Posted on Jun 15, 2009
difficult one this anfd i do hope more experts read it and have a think about it ,now engine will run with ether spray ,or petrol down air intake so the problem has to be fuel related ,so firstly check for fuel pressure into the fuel rail ,on the end is a car tyre like valve so push this down and check the pressure to see if it squirts ,if it has pressure then use a meter to check the current to the injectors but as its a pulse then use a dwell meter or a scope as i think the ECU could be damaged and its not pulsing the injectors to make them open allowing fuel through ,but i could be wrong of course ,it may pay to have the ECU repaired in specialist company to eliminate this as a source of your problem .
Posted on Nov 12, 2010
SOURCE: 1986 toyota truck 4x4, 4cyl,
The igniter interprets signals of time and position from the distributor, fits the efi ecu with information and then the ecu gets back to igniter to tell it when to fire specific cylinder, we used to have problems with the distributors and also igniters.
Posted on Jan 11, 2011
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