2003 Toyota Corolla, 4 cylinder engine 1ZZ-FE
It also applies to 2003 2004 2005 2006 2007 2008 Corolla’s. Chevrolet Prizm 1998 1999 2000 2001 2002
Tested all 4 injectors and resistance were in specifications from previous video I made.
Watch here: https://www.youtube.com/watch?v=Z5xWObLKWTo
Car had a rough idle and in freeway speed there was no power. Check engine light on prior to testing. 3 DTC codes
Freeze Frame stored first code as follows.
P0171 Lean Condition: When the air-fuel ratio feedback is stable after engine warming up, the fuel trim is considerably in error on the rich side (2 trip detection logic)
Possible trouble areas:
-PCV hose
-Air induction system
-Injector blockage
-Mass air flow meter
-Engine control temperature sensor
-Fuel pressure
-Gas leakage on exhaust system
-Open or short in heated oxygen sensor circuit
-Heated oxygen sensor
-ECM
P0303 #3 Cylinder Misfire
P0304 #4 Cylinder Misfire
It was determined that #4 fuel injector was bad because of BLOCKAGE in the pin holes.
How I determined that, switched #1 injector to #3 injector and #2 injector to #4 injector, then drove the vehicle. Check engine light immediately came on. P0300 Multiple Misfire, P0301 #1 Cylinder Misfire, P0302 #2 Cylinder Misfire. The injectors on #1 and #2 now were misfiring.
In the video, I replaced the last injector. My friend would have saved on labor cost if he had replaced all the injectors all at one time. I recommend to replace all the injectors if one injector is clogged. It is more likely the other injectors will give off codes in the future.
Note: If it was a P0172 code with misfire codes, it is a rich condition, meaning there is unburned fuel, so then the coil packs could be the problem.
The information contained in this video is for general guidance, not responsible for any errors or injuries that you have done. Samsung W200 camcorder was used to do this video. please subscribe and thank you for watching. Follow me on TWITTER: @88bmyvegas
){kind=link}
Im surprised the new injector didnt leak because that oring didnt seem to fit the injector at all. When I replaced my injector orings, the new ones i bought at Oreillys fit exactly like how it did in the video — loose. They were too small, so all 4 injectors leaked when I turned the ignition on. Maybe that silicone paste did the trick? I used regular motor oil to lube the orings. had to go to the dealership for orings that fit.
Tips on Common Rail injector https://www.youtube.com/watch?v=_j_-eH44g4I
Don't change anything about the way you do videos, no B'S, No Music, straight to the point and made it look so easy.
Do you turn the key back and remove from ignition once the fuse is pulled?
Isn't it better to use a fuel resistant sealant then a lubricant
successfully replaced all of my 4 injectors and cleared the ECU…after driving a few minutes check engine went back with the same codes 300-304…any thoughts?
great tip for stopping the fuel pressure, thanks.
Good video sirI appreciate proper editing
Wish I would have seen this video before removing mine -.-
Other videos didn't mention that I needed to remove the FP fuse to depressurize the system.
Thanks a lot! This worked great for a 99 Chevy Prizm, has a Toyota engine. Did all 4 fuel injectors.
good info dude thanks
Would pulling the EFI fuse also work to depressurize the gas tank when changing the fuel filter?
What an incredibly great video! To the point, but thorough. I used 1/4 sockets with an extender ok on my vibe. But I dropped the 10 mm bolt! A telescoping magnet grabber came in handy! Otherwise took a little over 1/2 hour.
can you use silicone spray instead of paste
do you know how to change fuel pressure regulator?
thanks for the upload =)
This would actually make a good ASMR video. Just have to sharpen up on the sound.