kraked

Here's the story. I f'ed up a hose job on my working seq system so I had it converted to non seq. Afterwards, engine bogs at 4k, otherwise drives fine.

My question is, if the FPR vac line was leaking, would that cause my car to bog at 4k?

Thanks!

maxcooper

You should fix the leak in the hose. Otherwise, you might not get enough fuel under boost, run lean, and crack some seals. But I can't think of any reason that such a leak would cause the car to bog at 4K RPM.

Does it fall on its face when you try to boost, too? If so, it might be a secondary injector not working. Check the electrical connectors on the secondary injectors -- maybe you just forgot to reconnect one, or it isn't quite on 100%. And you can also apply 12v to the injector (+ to one terminal, - to the other terminal) and listen for a click to check if the injector itself is still good.

-Max

kraked

Ok, thanks, guess I'll just have to make time one weekend. I've been taking it easy on the car, (it's been about 4 months now) and no problems whatsoever--except the inability to boost.

rx7bomex

i had my hose leak without knowing under boost popped 2 seals

kraked

Thats terrible to hear. Looks like my problem is most likely stuck secondaries. Been kinda in denial, but it was a PITA to pull all that stuff off the car. Thanks everyone who responded.

RotaryEvolution

iTrader: (30)

doubtful, i looked over all the lines but i did forget that the stock ECU has a transition stage built in for the twins and i didn't realize this until recently(tuning twins is still relatively new to me) . there is a simple setting in the PFC under sequential boost control that needs to be turned off. the low boost is still another issue that needs to be cleared up and probably can be simply fixed with a boost controller since i haven't checked to see where the pill is located in the system and could have been easily omitted during the non sequential conversion/vacuum job without realizing it.

the last non sequential i did was identical but he has a boost controller and we set it up in the PFC/datalogit and set it up for non sequential and i was rather impressed with how well it pulled after i tuned it with the stock twins @14PSI on a stock port motor with free flowing exhaust.

i am still unsure how the turbo control solenoids will operate after changing the non-sequential setting in the PFC, it could correct the low boost issue so be careful and watch the boost levels after you change that setting.

kraked

Tried changing the sequential setting a long time ago and had no effect on the car. I need to bring that thing to you one weekend but not now cuz its getting a 99 spec front end and new paint job/ding removal

Remember when my car came on that ghetto *** tow truck and he f'ed up my panel? Yeah it's getting fixed

RotaryEvolution

iTrader: (30)

yea, when he rolled up i thought he was someone you knew not a towing company...

i still woulda called him back up and chewed on his *** to make myself feel better about it though.