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hi guys. im very dissapointed with my celica #451929 Jan 6, 1:52pm Jan 6, 1:52pm
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albania
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albania
hi guys. im very dissapointed with my celica
im very dissapointed with my celica . i have spent a lot of money , i have cleaned the Intake and exhaust valve , i have changed the spurks plugs, i have controlled maf sensor , throtle body , and idle controll speed but my car still is lazy , its max speed is 100 mph . i have checked to the injection system , and its ok

Re: hi guys. im very dissapointed with my celica [Re: nandi] #451930 Jan 7, 10:58pm Jan 7, 10:58pm
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What year, what model?

Did you check compression?

Re: hi guys. im very dissapointed with my celica [Re: nandi] #451934 Jan 13, 8:26am Jan 13, 8:26am
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yes bro the compression is 13 bar fo all the cilinders .
the engine type is 1zz-fe the year is 2003

Re: hi guys. im very dissapointed with my celica [Re: nandi] #451935 Jan 13, 3:45pm Jan 13, 3:45pm
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13 BAR EQUALS 188.549 PSI which should be OK for the 1ZZ.

I have a 2ZZ engine with higher compression. After 247K miles COMPRESSION were 193 200 210 230 in 4 cylinders.

Check the fuel filter and fuel pump to make sure adequate fuel is being pumped to the injectors.

Otherwise it must be a bad or dirty MAF that senses low incoming air therefore pumping little fuel into the injector to exceed 100 MPH. The MAF may look and test fine, but may have broken.

Swap in a known-good MAF sensor (Toyota and Lexus use the same DENSO MAF). Reset the CPU by removing battery's negative cable, then run the car a few days to remap fuel table.

Re: hi guys. im very dissapointed with my celica [Re: nandi] #451936 Jan 13, 9:18pm Jan 13, 9:18pm
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I have checked the fuel pump and i have changed the fuel filter 2 days ago . The injection system is perfectly fine. I have changed the Maf sensor too with my friend that have the same type of celica 1zz . But mine has the same problem, and his car with my maf sensor is running perfectly. I don’t understand where is the problem 😰 . I have done a consulting with an engineer of Toyota and he said to me tha may be a vacuum leak ,bbut my car hasn’t whistling sound

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