I have a 96 EJ8 5spd. I bottomed out and busted my exhaust tip ( retarded loud!) and now when im tryin to get up to speed in 2nd and 3rd it boggs down instead of hitting vtec. I get no throttle response until the next gear. Im not sure if its because there isnt much back pressure or what. Any ideas? Thanks in advance!!

No problems with exhaust.
No dents or anything in oi pan.
Full of oil.
Wires are good.
Solenoid is new.
Solenoid gasket is new.
Filters are clean and in good shape.
Plenty of VTAK fluid, and Vtec resivior is good! Lmao.

 

I broke a tailpipe on my old Probe and you'd be surprised of how much top end I lost, just from a stupid piece of round sheet metal.

 

Reslly now? Well im in the process of changing out the tips, i guess ill find out after im done.

 

You sure there's no crushed spots?

 

No crushed spots, just went threw and inspected the whole exhaust. Also just put the new tip on. Drove perfect after the first start up. Wouldnt bogg down at all, but vtec wouldnt engage in any gear. After the second start up, it started to bogg down again at around 5500-6000rpms. Im dumbfounded. I replaced the vtec solinoid too. didnt help. Plenty of oil. Wires are all intact. Plugs are clean. New gasket. Help?

 

Anyone?

 

Is the catalytic converter still intact with no signs of damage?

 

like i said before. the exhaust is fine. was fully inspected.

 

Check your air and fuel filters. Do you have a shitty idle? Also, what size intake and exhaust?

There is a such thing as ruining your car with improper mods. For example, 3" intake with a 2.25" exhaust gave me better top end, dropped the pipe down to a 2.25 turbo pipe (left over from my friends kit) and still 2.25 inch exhaust and i have less top end but better bottom end. (small differences, but noticeable by the daily driver AKA ME :D ). Also check your throttle body for build up of carbon and straight up dirtiness. My TB was so dirty when I got the car and now that its clean it runs smoother throughout the rpm band.

 

the filters are fairly new. but it only started doing this after i bottomed out really hard. the exhaust and intake have been on there for a few years now. no issues with the vtec till after it bottomed out.

 

maybe the oil pan got crunched too? other then that im at a loss :/

 

^This is a possibility. VTEC relies hevy on oil, as does the engine too of course. You **** up the pressure or how the oil sits when idling or off and it'll mess up the engine. Maybe when you let it sit, the oil sits low enough in the oil pan and is like stock but once it moves around, it's reservoir and stationary position **** all the oil properties up? Possibility, after this, I'm at a loss as well.

 

Where is your O2 located?

 

It's bogging because you have too much vtec lol

 

^THAT'S IT! You didn't dent the oil pan, you dented your VTEC reservoir. Oddly enough, it sits right above the tailpipe.

There yah go! =D

Ha...

 

Guess ill goto honda in the morning and get a new reservoir. Well maybe i just ran out of VTAK oil.

But on a serious note. this is pissin me off. I have got to figure thisout soon b4 i go nuts.

 

The primary is on the header and the secondary is on the cat. Both look to be fine. No codes.

 

Check that vtec reservoir Yo.......

 

Joke was over yesterday homie. You fail at being funny. Lol.

 

LMAO.....

Jump the harness for cel's. See if anything comes up. my b18b just did this. I had no cel light but when I jumped connector to check timing it started flashing. I kniw my **** has no vtak...lol. but its a suggestion.

 

Might be a clogged cat. You wouldn't really be able to tell without actually removing the cat.

 

You more then likely did some oil pan damage when you bottomed out. A big rock hit my oil pan and dented it bad. When I took the pan off the oil pickup which sits low in the pan was kinked, and the engine was barely getting oil flow. The oil pressure light never came on since it needs to see lower then ~8PSI of pressure to come on. At idle you make about 11-12PSI. Check your oil pan.

 

Ill check the cat for bein clogged, if it is, ill just clean it out.


No damage was done to the oil pan.

 

The cat isnt clogged. Sum beetch. Any more ideas?

 

I'd say clean the IACV (w/e it is) but thats is for shitty idol most of the time.

Map sensor?
Fuel pump?
Wrong fuel? (93 is a must)
Timing Belt is off by 1 groove?

EDIT: Now that I think about it, try changing where you buy your gas. My local shell used to be great, and then one day my car started running funny after I filled up from them. Switched to chevron and It was good, then after while my car started running like **** on that as well. Now I've been getting gas from my local BP for 11 months now and no hick-ups (they are privately owned, and serviced by Carrol fuel)