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P0299 Diagnostic Trouble Code Discussion for March 2010

Turbocharger Engine Underboost


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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
1995 Dodge sprinter 2.7L MIL Lamp on, loss of power VIN: WD2PD64495
P0299: tubo boost low. ... charge to intake and clearing p0299 from memory then road test. plenty of power and boost for 10 miles, driving hard putting against governor 82mph then slowing down to 50 then up again. i wanted to make sure this problem was gone. At about 10 miles into t...
March 01, 2010
2005 Ford F-250 Super Duty XLT 6.0L low power
P0299: Turbo/Supercharger Under-Boost. Customer brought truck in from dealer. States low power and boost at 1500 rpms on the highway. Customer has Edge tuner and oversized tires. Checked EGR valve and found it a little bit gummy. IDS VGT test passed. I'm leaning towards replacing EGR valve, but I t...
March 18, 2010
2005 Ford F-250 Super Duty XLT 6.0L low power
P0299: Turbo/Supercharger Under-Boost. Customer brought truck in from dealer. States low power and boost at 1500 rpms on the highway. Customer has Edge tuner and oversized tires. Checked EGR valve and found it a little bit gummy. IDS VGT test passed. I'm leaning towards replacing EGR valve, but I t...
March 22, 2010
2006 Volkswagen Passat 2.0T 2.0L low power VIN: WVWAK73C26
P0299: boost regulation control range not reached. Car came in with low power and code P0299.Ross Tech showed there was a problem with boost pressure control valve so we replaced it with updated valve from dealer. Didn't help. checked boost pressure at idle and wopt and stays at 970.0 m bar. Sometimes it chang...
March 22, 2010
2006 Jeep Liberty Limited 2.8L Excessive Emissions, Hesitation VIN: 1J4GL48536
P0299: Turbocharger Underboost Condition. This Jeep idles fine but on acceleration it has little power and pumps black smoke out the tailpipe. Only 1 code for turbo underboost. All the intake plumbing is intact. Our Alldata system has very little info on this engine. Any advice would be greatly apprec...
March 29, 2010