no boost!!!! problem need to get to work!!!!

[katinkid]

ok guys 89 240sx 5spd. sr20det. stock everything cept intake and fmic.

on my way home driving normal. droped from 5th to 4th gear. and all the sudden no boost. bogging out right at boost...

has 20vaccuumm but soon as i hit that "0" it boggs out...

cant find any leaks in the couplers on the piping... idk what it could be...

any help greatly appreciated do, especially cus i gotta get to work early in the morning!!!

thanx guys im searching this as we speak too just need help fast.

[katinkid]

oh and if i try n idle the car and rev it a little with it sitting the temp gauge starts to go up... doesnt normally do that....

[pauliedrft]

Start by checking every fluid see if you have blown a head gasket and try the tennis ball trick to find the leak and check your turbo it couldve blown to (im just going off thee info you have givin ) hope this helps.

[katinkid]

never heard of the tennis ball trick??? again searching as i speak...

car idles and runs perfect until i hit boost... so dont think it can be head gasket... correct me if im wrong. and idk about a blown turbo, it didnt show any signs of wear.... anyone know a good shop here in orange county, California i could take this thing to cus i have like no time to do this myself cus she is my DD to work:(

Thanks again guys!

[katinkid]

ok guys!!! took off intake and intercooler piping in between intercooler and turbo.

the turbine is not siezed moves freely with no play...

however there is oil in the intercooler piping i took off... is that suppose to be there? it is very thick n black. no liquidy just stuck to the walls of the piping.

[pauliedrft]

seals ar blown if you have a journal bearing it can be rebuilt if its ball bearing go buy another turbo . and i would buy a cheap car just for these emergencies you have boost shiz can happen gl

[katinkid]

well i guess seals are not blown, its some amount of oil bypassing the catchcan from the valve cover.

Steve at Corner 3 Garage has the car right now, awesome guy i would recomend him to anyone, seems like his work is very good quality and from what i saw he takes a lot of pride in his work. so im sure im in good hands.

keeping you guys updated cus i hate when someone has a mysterious problem and doesnt post the solution...

[katinkid]

well guys recieved an update for the car, not the maf, tps, cas, no vacuum/boost leaks, grounds are decent.

the shop is leaning towards coilpaks but dont wanna buy them if its not those... anyone got any extra coilpaks i can use to switch mine out for a day? sr20det 89-92 black top.

[katinkid]

well guys the shop found the problem it iwas the coilpacks... even though they were putting out the correct resistance i guess under load they werent giving a very good spark. replaced them with new ones and the car runs perfect!!!

not many of you responded to this thread with suggestions but after doing so much searching on the topic i guess its always a couple things causing the problem.

if you guys were following it at all here was my problem thanks again for any help or advise you guys put in.