03 spec v bog down no light

[yella nissans]

03 spec v just changedmass air and cps for engine light on and ok for a week or so . no ses or check engine now but at 3500 rpm in all 6 gears it bogs down and won't pick back up saved alot in gas mileage but is gettin old quick please help nissan dealer says no codesalso

[nametakennow]

Will it not go past 3500 at all or does it just lose a lot of power?

Do you have the stock exhaust manifold?

Have you loctited your butterfly screws?

Any other symptoms?

[yella nissans]

stock exhaust, it will take off some times if i really lay into it someone else said about the butterfly screws but he said if thats the prob you need a new engine ? whats that about is it the secondary intake side?

[sajori]

check the brake lights....

[nametakennow]

If a brake was sticking it'd probably be noticeable below 3500rpm.

If one of those screws got sucked in, you could need a new engine, you might just need some valve work, or you might get lucky and it'll just exit the exhaust valves.

Are you consuming oil more than normal?

[yella nissans]

no more oil consumption now but have had the engine replaced under the catalyst recall in 2005 the dealer told me the cai was the problem for the fouled mass air but ive always had one and ive had one on my old 2000 frontier and her 2004 frontier also i think ill take a look at the intake and valves this weekend . this morning taking the daughter to school it bogged down on the way but ran ok after layin into it on the hill climb home acts like this maybe once a week then goes back to screw up pattern

[yella nissans]

I have checked over all the engine components intake, butterfly plate, vac hoses but its still boggin down. put a snap on ethos on to graph a problem and it idles down to 250rpm every 30 seconds while setting still and put out a code of P0171 which said fuel sys too lean. its actin the same as with the old maf i may just need to get a new one instead of a NAPA one? any input?

[nametakennow]

OEM MAF would be a better choice. If the CAI has an oiled filter, oil may have been sucked onto the MAF.

[yella nissans]

installed new filter, and picked up maf cleaner from cdc and cleaned ran great yesterday upp through the hills and around feels young again but now wants to shut off at stops idles up and down to stalling then picks up to 1500 i'll try new maf from nissan and run a bit code too rich now on we''ll see thanks

[nametakennow]

Too rich code + bad idle, how's your water temp gauge look?