Hesitation on full boost
08-02-2002, 01:29 PM
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Hesitation on full boost
I have an 86 - 951
I am suffering form hesitation on full boost. <img src="graemlins/crying.gif" border="0" alt="[crying]" /> acually it started a few weeks ago at 1 bar. but now is playing with me between .6 and .8 .. Im thinking that it is a fuel problem so I ordered a filter and ill install tonite.
mods. 88- 951 autothority stg-2 chips, msd-6,
also. when i instaled my msd-6A it started hesitation at .6 bar. but when i un-plug it, it will hesitate at .8 bar. is the MSD compatible to the stock computers?
any advise as to when I should go before I start throwing the book of parts at it?
new parts. recirculation valve, ignition coil "msd blaster-6", exhaust gaskets, oh and a oil pickup tube
:
<img src="confused.gif" border="0">
I am suffering form hesitation on full boost. <img src="graemlins/crying.gif" border="0" alt="[crying]" /> acually it started a few weeks ago at 1 bar. but now is playing with me between .6 and .8 .. Im thinking that it is a fuel problem so I ordered a filter and ill install tonite.
mods. 88- 951 autothority stg-2 chips, msd-6,
also. when i instaled my msd-6A it started hesitation at .6 bar. but when i un-plug it, it will hesitate at .8 bar. is the MSD compatible to the stock computers?
any advise as to when I should go before I start throwing the book of parts at it?
new parts. recirculation valve, ignition coil "msd blaster-6", exhaust gaskets, oh and a oil pickup tube
:<img src="confused.gif" border="0">
08-02-2002, 01:33 PM
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Hey -
Could be fuel related, so I'd check the fuel rail pressure, fuel damper and pressure regulator.
Could also be a vacuum leak, especially if you just replaced anything near vacuum lines.
I'd check her over real carefully for vac leaks, then check the fuel system.
HTH!
Could be fuel related, so I'd check the fuel rail pressure, fuel damper and pressure regulator.
Could also be a vacuum leak, especially if you just replaced anything near vacuum lines.
I'd check her over real carefully for vac leaks, then check the fuel system.
HTH!
08-02-2002, 04:18 PM
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hybrid_944,
im with toolmaster, check your car over for any vacuum leaks. check all the vacuum lines, and dont forget the rubber conectors to the intercooler, throttle body, and turbo. i had hesitation also at full throttle and it turned out to be a lose hose clamp on one of the rubber hoses to the intercooler.
take care,
Sean
86 951 tial WG, SFR 3"exhaust, Apexi AVC-R, t04 turbo
im with toolmaster, check your car over for any vacuum leaks. check all the vacuum lines, and dont forget the rubber conectors to the intercooler, throttle body, and turbo. i had hesitation also at full throttle and it turned out to be a lose hose clamp on one of the rubber hoses to the intercooler.
take care,
Sean
86 951 tial WG, SFR 3"exhaust, Apexi AVC-R, t04 turbo