Boost limited, MAP the cause?!?!?

[89ShelbyGuy]

Heys guys, well, recently, my boost has been limited to 5-6 psi on a s60 turbo..lol..i am randomly getting code 13 when the car drops in idle..i know i can't beat on the car, but its my daily driver...so i take a easily..but i boosted it today, and its limited to 5 to 6 psi inb every gear..no check engine light or anything goes on, Would a faultly map be causing this? Or would a fault in my boost controlers (no -g- valve yet.) Thanks!

Tom

ps. i am getting the map friday....40 bucks...jezz)

[DakotaKid]

I do not think it is the Map sensor.
I am having that same problem at the moment.
I was out of town and ended up spending $75.00 on a Mopar Map sensor to only find out that was not the problem.

The problem I am having is that when it rains I can only get to "0" on the boost gauge, anything more and she bucks like it is boost cut-out.

I do not have any codes at the moment so no telling what is going on.

[89ShelbyGuy]

Do you have a g-valve, or stock controled?

[DakotaKid]

I have a G-valve.

I have a switch in the cab that allows me to switch from manifold pressure (4 psi) to open wastegate (18 psi). Both setting have the same problem.

[beyond_audio]

just a guess, could that be a dying coil? also make sure there is no vacuum leaks.

[tryingbe]

Are you running a straight vaccum to the wastegate with no orifice?

[glht_omni]

Quote:

Originally Posted by TrboVan I do not think it is the Map sensor. I am having that same problem at the moment. I was out of town and ended up spending $75.00 on a Mopar Map sensor to only find out that was not the problem. The problem I am having is that when it rains I can only get to "0" on the boost gauge, anything more and she bucks like it is boost cut-out. I do not have any codes at the moment so no telling what is going on.

bryan it sounds like it could be a fule starvation problem i had with the strainer getting clogged when i hit "0"
or, my buddies van, no ac condensor, tranny cooloer or ic up front just a radiator and no dist shield, would stumble and stall and start for a while, wound up being his wires were getting soaked in the rain.
just some ideas

for the guy who started the post, it sounds like yo uhave a vac leak somewhere or a weak wastegate, i would check all the vac lines first, then shim the wastegate with a pair of washers to see if that helps.

[DakotaKid]

Well at this very moment the van will not start.
I replaced
1) Coil
2) Computer
3) HEP
4) Map Sensor

Still have no codes.

[DodgeZ]

Quote:

Originally Posted by TrboVan Well at this very moment the van will not start. I replaced 1) Coil 2) Computer 3) HEP 4) Map Sensor Still have no codes.

are the wires wet? you getting spark and fuel?

[GLHNSLHT2]

back to the original question, A code 13 is a vac problem with the map. Check www.minimopar.net for an official description but you've got an issue with the vac lines somewhere.

[89ShelbyGuy]

Ok. There ALL new vac lines, i am almost sure as hell there all on right.
The wastegate is the new garret from TU. The turbo is a new S-60 trim turbo.
My coil is brand new.
Its weird. sometimes it hits full boost, others, it doesn't.
Geuss i'll check the vac lines one more time.

And i don't have a office in the line to the wastegate...do i need one?

Tom

[86lance]

got ur baro solenoid hooked up?

[89ShelbyGuy]

yup.

[87shelbyt2]

Quote:

Originally Posted by 89ShelbyGuy snip And i don't have a office in the line to the wastegate...do i need one? snip

It's not absolutely necessary to have the restrictor/ orifice in the vac line... but it does help somewhat to smooth WG operation, and helps slightly with lag. IMHO you probably won't notice a difference with it in there. If you're still using stock WG control (i.e. solenoid) check the vac lines in that area. Also double check and triple check the short vac line off the baro sol. to the map. replace and zip tie connections if necessary. Good luck -J

[glht_omni]

you could also be throwing that code 13 due to your fpr leaking fuel into the map sensor, pull the line off the fpr and smell for gas, if you do replace it or rebuild it if it is a afpr.

bryan, are you getting gas to the rail? do you have a fuel pressure guage to check pressure? are you getting spark?