engine wants to die??? - Toyota Nation Forum : Toyota Car and Truck Forums

jayrguidaben · 07-30-2010, 03:57 PM

Ok I've been searching here since this morning on my BB phone and its hard to search here.
I have 05 camry 4cylinder with 110k miles. Starts fine in 1 crank, Idles fine 700-850 rpm. My problem is when I rev the engine in park or neutral the engine wants to die. Its like the rpm goes below 500 rpm and goes up slowly. Its not going to stall but it wants too. Even in D, on a stop same thing happen. Change the plugs last 20k. I'm not sure if its choking, the engine is rich or needs new fuel filter or flooded. Help is appriciated. Thank

gdanaher · 07-30-2010, 04:21 PM

If it was running too rich it would pop a MIL and that hasn't happened. If the fuel filter was dirty the issue would be at the top end of the scale, not the bottom. It's impossible to get to anyway. Put a can of gumout in the gas to begin with. Probably won't fix this, but it will clean the injectors to some extent. Get a can of mass air flow sensor cleaner and clean that thing up. That is the most likely cause for this problem.

jayrguidaben · 07-30-2010, 04:36 PM

Hey thanks for the quick reply. Yup no CEL. I'll clean the mass air flow tom. What else can you think? Maybe ill try to sea foam it tom too.

GT-R · 07-30-2010, 04:37 PM

How about your air filter Jay? Is it still good?

jayrguidaben · 07-30-2010, 04:48 PM

Thanks gtr yup its still good I just cleaned it like 2-3 months ago. And put good amount of oil on the knn.

tkkidd · 07-30-2010, 04:58 PM

have you cleaned throttle body?

ItsMeJon · 07-30-2010, 05:15 PM

Clogged Cat?

jayrguidaben · 07-30-2010, 05:54 PM

Haven't clean the TB lol.. I'll clean it tom too. Hmmm clugged cat? Man that's expensive to fix..I'll stick with the cleaning first. But thanks.

gdanaher · 07-30-2010, 06:05 PM

It's not the cat. Your problems are at the bottom end as you speed up. Cat would be killing the top end down, similar to a clogged fuel filter. Everything you have described begs of a MAF sensor or throttle body being gooped up, as well as injectors that might be getting clogged.

ThaSleeper · 07-30-2010, 07:56 PM

All this and no check engine light? Your MAF should throw a check engine if it goes below the resistance/temp it should read or if it's intermittent. (engine code P0110, P0111, and P0112 on most vehicles) I would def check the throttle body n clean it. Read the DIY on the forums for doing it, but you probably already have read that. The other thing, that I know of, that will kill your idle at a 'particular' rpm is your EGR valve. But you would know. If you slowly rev the engine up, @ around 1500 rpm or so (depending on the ECM settings) it will sputter and kick you down to really low rpm and then slowly build back up. To test that you would need a vacuum pump that a mechanic uses and hook it up to the EGR. Had that happen to me on an older vehicle of mine. Hope it's something simple for you to fix up! Hate it if my car doesn't run just right. Oh yeah, have you checked the camry stuff .com manual for troubleshooting yet?

jayrguidaben · 07-31-2010, 10:52 PM

hey thanks thasleeper yeah no codes or what so ever. anyways, thanks guys for the help! it runs better now. what i did is put some injector cleaner in the gas tank, clean the throttle body and clean the maf sensor. it idles smooth now. thanks again!