Slow acceleration, trouble on inclines

Derrickt2020 · 2020-07-24T19:07:26+00:00

Theirs much to explain so I'll just start at the beginning. So my car started to accelerate very slowly almost as if a fuel filter or something was clogged and making a loud exhaust sound as if the exhaust had a hole or something. Come to find out my catalytic converter bank two was clogged. So i ended up just cleaning it out myself to save money. It was 100% full/clogged with whatever the dark silver stuff is. Anyways, that seemed to help some but still slow accelerate and also when i use the A/C while driving it takes a lot of power almost to where i can't accelerate and will shut off if idling. Also going up hills is almost impossible. And if there is extra weight in car, it barley makes it up the smallest incline. I ran ob2 meter and said i had some misfires so i replaced all the spark plugs, did a fuel filter change and inspected the fuel pump which is good (there is no fuel filter, i think it's part of the fuel pump because I can't find one and the fuel pump has a mesh type thing on bottom of it). I also checked the exhaust manifold/catalytic converter bank 1 and it's clear. I'm about to replace the spark plug engine coils and spark plugs again since i didn't replace the coils the 1st time. I also used a long screwdriver to put on the fuel injectors to listen for the clicking sound it makes to ensure they are working and they are. So what could be my issue?

2007 HYUNDAI ACCENT

112,000 MILES • 1.6L • 4 CYL • 2WD • AUTOMATIC

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

DANNY L

AUTOMOTIVE REPAIR CONTRIBUTOR
5,648 POSTS

Hello again.

Yeah, those plugs are terrible. Definitely needed replacement. Be sure to gap between .039-.043 in. Hope this helps and thanks for again using 2CarPros.

Danny-

Aug 12, 2020 at 8:03 PM

DERRICKT2020

MEMBER
24 POSTS

I get 1ohms on all the coils with the multimeterset at 200ohms. If I set it at any other setting for ohms it reads 0. Does that mean they need to be replaced?

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Aug 18, 2020 at 11:08 PM

ASEMASTER6371

AUTOMOTIVE REPAIR CONTRIBUTOR
52,796 POSTS

No, not at all.

The real way to test coils is with a scope to see what voltage is being sent to the plugs.

That would be part of the diagnostic from a shop unless you have a scope.

Roy

Aug 19, 2020 at 4:18 AM