hey yall ive been having some serious issues with my integra its b18b block with b16 head stock rebuild lower end and fully built head with a .50trim turbo kit,

Heres the problem when i start the car it idols high(1500 rpms) and if you try to drive it, it spits and sputters (barely able to drive it) when i give it gas the throttle feels to be delayed, theres no CEL, it still hits full boost, but major loss of power!

Then when it warms up it runs better at idol speeds, but it still has major power loss,vtec doesnt engauge, and when i hit vtec rmps its as tho instead of power increasing it decreases, and last when i hit full boost multiple times the CEL light comes on and it blinks once but super fast which is 02 sensor....

Am assuming my cars in limp mode, but idk why and im shur someone out there has had a similar problem and any help would be great, Thanks Everyone

 

did you tune it when you put the turbo on it???

 

Yes Sir.! put down 250whp @ 5psi

 

Tuned on chrome and E85 if that changes any outcomes

 

Are you using stock map sensor???

 

Having similar problems with my setup. Pretty sure it's my distributor. Have you checked yours out?

 

hmm, sounds fuel related. pull your plugs and have a look. plugs will tell the story. also check the gap anything more than .030 will just blow spark out

 

Yea its a stock map sensor... and yea as far as the dizzy goes i just replaced last fall...

 

I could see this going a few different directions...MAP sensor or a random plug, like the TPS, is loose. Do a once-over and see if anything sticks out. After that, you'll be forced to fix one thing at a time and see if anything changes. I would source a dizzy from a friend to see if that changes anything...

 

i pulled the plugs there gapped just below .30 and if your looking down on the top of the plug there white and the ring on top of the threads is dark black

 

yea i just check everything looking for leaks of any sort, found nothing.it all looked good

and as far as the dizzy goes that would make since my car has never been the same since i had problems with it last fall. is there a possibiltity i got the wrong dizzy...i have a b16 head (ls/vtec) and the dizzy i ordered was a p73.

 

What kinda symptoms are you having with your car?

 

try searching for a map sensor that is made for boost, stock map sensor wouldnt work right with a boost.

 

the stock map sensot will read a full bar of boost, if its not throwing a light check and see if there is a vaccum leak

plugs are white? no good, that means a severe lean condition wich on a boosted car will most likely lead to death of the engine, do you have a knock sensor? what is it tuned with?

 

can u run vtec with e85? i always thought i had to put premium in my gsr cause it had vtec. not trying to jack your thread but just thought id ask.

 

try the plugs first its the cheapest route get a colder set ngk bkr7e and gap them at 25 sounds to me like your getting the sputter/break up issue it happens with e85

and e85 plugs are white after use. dont necessarily mean its lean get an afr reading good readings are in the 11's range

 

The stock MAP sensor, a 1.8bar, runs just fine on boost as long as positive pressure doesn't exceed .8bar (~11.5psi).

 

funny you should say it but i just bought the ngk bkr7e's last week and gapped them at .28 and it did nothing...

 

Yes Sir

 

Im pretty sure you were right about it being fuel related, i put some of that HEET stuff in the tank cause i heard that would eliminate any moisture and clean the fuel system, injectors, and what not...suprizingly it worked well !!

 

In regaurds to the origanal post, I now have fixed all but one problem! and that is when i start the car and its still cold it runs super rough and makes it hard to drive it....what yall thinking?!? iacv.?

 

No not iacv e85 takes a min. to warm up. Engine needs to be at minimal temp in order to combust ethanol properly.

 

ohh really i didnt know this....thanks

 

Yes you can