SpooledupRacing

OK guys car is an 86' N/a 5spd

I have pulled the intakes
removed and blocked the egr
removed and blocked the cold assist
removed all the oil injectors blocked holes
removed the omp and blocked everything off
I blocked all the left over vac ports

I have the following hooked up

6 ports air tube to exhaust
boost sensor
fuel pressure reg
thermowax still installed
coolant hoses on intake still installed
brake booster vac hose connected


problem... the car will start and immediatly die, if u hit the gas u can get it to rev. I dont hear any vac leaks, I took it for a spin and when I would floor it it was fine however in 1st gear it would buck a little

if u start it and hold the idle at like 3g it pops and sputters but if u floor it it will rev up no problem

what did I do wrong or what does it sound like is wrong??

HELP PLEASE!!!!


**EDIT**
Another problem I noticed is that before my 6 port actuators would open and close when u reved the car up to 3G (from engine bay u could see it) NOW they dont even move.. they are not stuck they just wont open now and I have the vacuum line hooked up

dwb87

iTrader: (22)

Without your OMP/oil injectors... you are mixing right?

Pinfield357

iven though you say you dont hear a vac leak your problems define a vac leak. You had alot of parts off i would go back and double and tripple check every thing for leaking gaskets or missing vac caps

SpooledupRacing

I am mixing yes...

is there a well known spot to look that I may have missed I am sure all the gaskets are tight and everythin is capped off but I know it is a vac leak

Dave

RX7Tuner.

You can spray carb cleaner around spots of the engine that are prone to vac leaks. If the idles jumps in an area that you spray, you found your vac leak.

Otherwise it might be benifical to buy a vacuum tester.

RX7Tuner.

Sometimes I can miss the vac line out of the boost sensor to the engine because it can hang down out of the way.

88rxn/a

iTrader: (6)

def. vac leak.
maybe the UIM to LIM gasket didnt seal?

SpooledupRacing

I willbe pulling the manifold tomorrow I have a feeling thats it because it looks like there is black forming around the edge where the uim to lin meet

I think that is the problem...

I will let u guys know

scrip7

iTrader: (6)

If you re-used the gaskets between the intakes or if you used an aftermarket gasket instead of OEM, you might be sucking air at those points. I never suggest using carb spray on a rotary engine to check for leaks. Too dangerous. Rotaries put out intense heat at the exhaust side of the engine. Use propane. Check out my post:

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/rx7-rough-idle-diagnosis-simplified-645051/

SpooledupRacing

I only had to replace the uim to lim and the lim to block both are oem gaskets

I just wondering if I did not get a great sealon one or the other so I will pull both back off today look at the gaskets for points of leakage and then reinstall maybe with some rtv this time!