Hello, I have a 2001 Toyota Echo (manual transmission) and had a check engine light pop on. the mechanic i took it to said that i had two problems: the coil packs needed to be replaced and the idle control valve was faulty. he was asking for $700 for the coil packs, but i figured i could change them myself. This weekend i replaced the coil packs and all four spark plugs with no real problems. The car sounded good when it was idling (more smooth then it had been) but when i took it for a spin, after a little more than 1 mile it lost power with the gas pedal fully depressed, until i fully engaged the clutch, then i could get 50 or so feet until it happened again. tried to replace the spark plugs again - with better ones- and the same problem. any ideas what this could be?
Country: United StatesMake: ToyotaModel: EchoYear: 2001Engine: 4 cyl manual
replaced spark plugs and coil packs.
Hello and thank you for choosing just answer.
Did you try to install the old coils and the old spark plugs back to see if it goes back to the way it was?
Also when it bogs down does your check engine light come on or start flashing?
Let me know.
Did not retry the old plugs or coils. The check engine light did start flashing the first time i did it, but not the second time. The check engine light has been on throughout the process as the idle control valve will still need replacing
My thought is that the misfiring cylander may have masked a gas line/fuel pump issue.
OK take all spark plugs out and take the new coils out and use the old coils and old spark plugs and then start the vehicle and go to your nearest auto parts store and have them read the on board computer codes for you, let me know what codes you find.
Oh also where did you buy the coils and the spark plugs from?
I ordered all of it from partstrain.com
but after the first set of problems i went to autozone adn bought some new plugs and installed those
Try the old original parts and go to autozone and have them read the codes and get back to me.
Master Automobile Technician L1 Advanced Level Specialist