ok i have a civic d16z6
14b/ hf manofold/ dsm 450cc /tuned on chrome currently running 9 lbs

when i turn on the car it idles great, let it warm up and when i first drive my car and hit boost it pulls hard in all gears all the way up to 7200 but after driving for about 10-15 minutes when i hit boost it goes up to about 4500-5000 rpms and slowly creeps up to 7

i am throwing a cel but when i check for the code it just flashes in a steady pattern with no change like im throwing a code 1

i have changed my o2 sensor with one from a gsr that i know works

and also my car was a dx before and on the there are 2 plugs for the map sensor one coming from the firewall and one on the harness

ANY INPUT???

 

so when it heats up you only get 7psi instead of 9??? check for boost leaks, andd check for exaust leaks before the turbo..

-joseph

 

no sorry i meant it slowly creeps up to 7000 rpms
im getting full boost just the car feels like its going knowwhere like the fuel pump is cutting off but it doesnt explain why it only does it warmed up

 

do you have a wideband?? Possibly an issue with your tune.

 

thats what i dont understand.

it didnt do this until about a week ago, maybe my fuel pump is giving out or my dsms are clogged what can a stock fuel pump handle

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coneheadsracing &raquo;</TD></TR><TR><TD CLASS="quote">do you have a wideband?? Possibly an issue with your tune. </TD></TR></TABLE>

^^ do you have a wideband, if not wee cant really help you because it could be leaning out or running really rich.

 

no i dont have a wideband, the car was dyno tuned at intec racing in seattle so there should not be any leaning out

i have a air/fuel ratio gauge and it goes to rich in boost, just feels like the fuel pump is not able to support the fuel,

its strange because since my car had no vtec before the map sensor has 2 plugs and i dont know which one to use one is on the firewall and the other is on the engine wire harness

when i use the one on the firewall it(origional)tidles great runs great but in boost it has the problem

and when i use the one on the harness it does not run at all

 

a/f guage doesnt tell you nothing lol just a light show, use the firewall map sensor because you used the wrong harness(other map wire arnt hooked up) i doubt your pump cant keep up with 9lbs on a 1.6. do you have a graph of your dyno?

-joseph

 

They can tell you rich or lean, just not to which extent. I had one with my wideband, one time the wideband was pig rich, cheapo autometer was lean. My exhaust was falling off, and the stock 02 was seeing fresh air, thus adding a ton of fuel. What i'm saying is at full throttle it can give you an idea if you are rich or lean.

When it falls on its face is it still reading the same as normal boosting?