My car won't run...it will start but it's missing like crazy. Holding throttle clear to 4500rpm, it misses, stays under 1000rpms, flares up, then comes back down. Normally I'd say it's the MAF sensor...I'm getting that 3" M3 MAF taken out and the stock 2.5" put in very soon, it's gone bad anyway. This has happened before, but not like this. I reset the ECU, and now it's even popping. I watched the boost gauge and it would jump from clear vacuum to about 1psi, just a very fluttery bit. It's just not running at all...we're getting the MAF sensor switched out...but I'm just wondering if anyone has an idea of any other problems. EGR valve probably needs changing as well. The check engine light isn't on, so no plug misfiring. It's not the distributor cap, after I reset the ECU it ran fine for about a minute, no missing or anything. Afterward tho it started missing and bogging again. Any ideas? Thanks
~Lee
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My Car Simply Won't Run
Started by blown_volvo850r, Dec 26 2004 08:02 PM
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8 replies to this topic
#1
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Posted 26 December 2004 - 08:02 PM
#2
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Posted 27 December 2004 - 07:52 PM
Come on I know someone can help me out here...Rob, Doug, Joe, Bill, anyone?
~Lee
~Lee
#3
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Posted 27 December 2004 - 08:38 PM
going out on a limb... o2s? does it idle fine?
Joseph H. Essaye III
Dealer for Samco, Forge, KW Suspension, Aquamist, Quaife Differentials, Autometer, MSD, and more!
PM me or email me at jessaye@gmail.com if interested!
Dealer for Samco, Forge, KW Suspension, Aquamist, Quaife Differentials, Autometer, MSD, and more!
PM me or email me at jessaye@gmail.com if interested!
#4
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Posted 27 December 2004 - 08:40 PM
QUOTE(JHEIII850Turbo @ Dec 27 2004, 03:38 PM)
going out on a limb... o2s? does it idle fine?
No, it's sounds like it's choking on an idle...serious bogging down.
~Lee
#5
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NWC Rod Bender
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Posted 27 December 2004 - 10:01 PM
also going out on a limb... all your IC piping connections tight?
When I first got my car back, idle was terrible and when i put my foot on the gas, it stumbled, and choked. They failed to connect my top IC hose. I know they can pop off very easily under high boost.
When I first got my car back, idle was terrible and when i put my foot on the gas, it stumbled, and choked. They failed to connect my top IC hose. I know they can pop off very easily under high boost.
1998 S70 T5M
Built motor, Nira i3+ EMS, GT35R, Tial 40mm Wastegate, Tial BOV, FMIC, 630cc injectors, 3" exhaust, Quaife diff, singlemass flywheel conversion, Spec stage III+..blah blah..
Built motor, Nira i3+ EMS, GT35R, Tial 40mm Wastegate, Tial BOV, FMIC, 630cc injectors, 3" exhaust, Quaife diff, singlemass flywheel conversion, Spec stage III+..blah blah..
#6
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Posted 27 December 2004 - 10:34 PM
QUOTE(850Ridah @ Dec 27 2004, 05:01 PM)
also going out on a limb... all your intercooler piping connections tight?
When I first got my car back, idle was terrible and when i put my foot on the gas, it stumbled, and choked. They failed to connect my top intercooler hose. I know they can pop off very easily under high boost.
When I first got my car back, idle was terrible and when i put my foot on the gas, it stumbled, and choked. They failed to connect my top intercooler hose. I know they can pop off very easily under high boost.
Yeah...I checked everything, I've blown intercooler piping off all over the place...TB/intercooler pipe, turbo charge pipe, everything. I'll double check it tho.
~Lee
#7
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Sampson
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Posted 27 December 2004 - 10:58 PM
IAC Valve?
- Sean
-'95 850 T5 White/Tan (SOLD) // '92 244 5-spd White/Blue // '04 Saab 9-5 Aero Sportcombi 5-spd Navy/Black/Carbon
-'95 850 T5 White/Tan (SOLD) // '92 244 5-spd White/Blue // '04 Saab 9-5 Aero Sportcombi 5-spd Navy/Black/Carbon
#8
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Posted 27 December 2004 - 11:05 PM
QUOTE(White850T5 @ Dec 27 2004, 05:58 PM)
IAC Valve?
Where's it located?
~Lee
#9
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Sampson
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Posted 27 December 2004 - 11:12 PM
It's the little cylindrical silver thing up near the intake manifold. It has an electrical connection that plugs into it and has a hose running out of each side. Try cleaning it.
Edited by White850T5, 27 December 2004 - 11:12 PM.
- Sean
-'95 850 T5 White/Tan (SOLD) // '92 244 5-spd White/Blue // '04 Saab 9-5 Aero Sportcombi 5-spd Navy/Black/Carbon
-'95 850 T5 White/Tan (SOLD) // '92 244 5-spd White/Blue // '04 Saab 9-5 Aero Sportcombi 5-spd Navy/Black/Carbon
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