1998 Opel Vectra Sedan emission

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Condition	Value

expand_moreDiesel exhaust gas values

expand_moreCut-off control speed


Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) 80 HP at 4400 RPM, 168 N⋅m at 2400 RPM	5100–5300 rpm5100–5300 rpm5100–5300 rpm
All other modifications	4900–5100 rpm4900–5100 rpm4900–5100 rpm

expand_moreMaximum K-value


Opel diesel straight-4 2.0 L X 20 DTL 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM	2.2 1/m2.2 1/m2.2 1/m
Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) 80 HP at 4400 RPM, 168 N⋅m at 2400 RPM	2 1/m2 1/m2 1/m

expand_moreAll other modifications


X20DTH engine	2 1/m2 1/m2 1/m
Y20DTH engine	1.9 1/m1.9 1/m1.9 1/m

expand_moreGeneral exhaust gas values


Diagnostic socket location	The diagnostic socket is in the middle of central panel under the cover.

expand_moreExhaust gas recirculation (EGR)


Opel gasoline straight-4 1.8 L X 18 XE 114 HP at 5400 RPM, 170 N⋅m at 3600 RPM	No
Opel gasoline straight-4 1.6 L 16 LZ2 74 HP at 5400 RPM, 120 N⋅m at 2800 RPM	No
All other modifications	Yes

expand_moreIdling speed with automatic gearbox


Opel gasoline straight-4 2.0 L 20 NEJ 110 HP at 5400 RPM, 165 N⋅m at 2800 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline straight-4 2.0 L X 20 XEV 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline straight-4 2.0 L C 20 SEL 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline V6 2.5 L X 25 XE 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM	640–800 rpm640–800 rpm640–800 rpm
Opel gasoline V6 2.5 L X 25 XE 192 HP	570–730 rpm570–730 rpm570–730 rpm
Opel gasoline straight-4 1.6 L X 16 XEL 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM	710–930 rpm710–930 rpm710–930 rpm
Opel gasoline straight-4 1.6 L Z 16 XE 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM	710–930 rpm710–930 rpm710–930 rpm
Opel gasoline straight-4 1.6 L Y 16 XE 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM	710–930 rpm710–930 rpm710–930 rpm
All other modifications	730–950 rpm730–950 rpm730–950 rpm

expand_moreIdling speed with manual gearbox


Opel gasoline straight-4 2.0 L 20 NEJ 110 HP at 5400 RPM, 165 N⋅m at 2800 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline straight-4 2.0 L C 20 SEL 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline straight-4 2.0 L X 20 XEV 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM	670–1030 rpm670–1030 rpm670–1030 rpm
Opel gasoline V6 2.5 L X 25 XE 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM	640–800 rpm640–800 rpm640–800 rpm
Opel gasoline V6 2.5 L X 25 XE 192 HP	570–730 rpm570–730 rpm570–730 rpm
Opel gasoline straight-4 1.6 L X 16 SZR 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM	770–930 rpm770–930 rpm770–930 rpm
Opel gasoline straight-4 1.6 L 16 LZ2 74 HP at 5400 RPM, 120 N⋅m at 2800 RPM	770–930 rpm770–930 rpm770–930 rpm
Opel diesel straight-4 2.0 L X 20 DTL 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM	800–900 rpm800–900 rpm800–900 rpm
Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) 80 HP at 4400 RPM, 168 N⋅m at 2400 RPM	780–880 rpm780–880 rpm780–880 rpm

expand_moreOpel diesel straight-4 2.0 L X 20 DTH 99 HP at 4300 RPM, 205 N⋅m at 1600 RPM


X20DTH engine	800–900 rpm800–900 rpm800–900 rpm
Y20DTH engine	720–880 rpm720–880 rpm720–880 rpm


Opel gasoline straight-4 1.6 L X 16 XEL 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM	710–930 rpm710–930 rpm710–930 rpm
Opel gasoline straight-4 1.6 L Y 16 XE 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM	710–930 rpm710–930 rpm710–930 rpm
Opel gasoline straight-4 1.6 L Z 16 XE 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM	710–930 rpm710–930 rpm710–930 rpm
All other modifications	730–950 rpm730–950 rpm730–950 rpm


Minimum engine oil temperature at VET	176°F176°F80°C

expand_morePetrol exhaust gas values

expand_moreCO content at idling speed


All Opel gasoline straight-4 1.6 L 16 LZ2 engines	0–0.5 %0–0.5 %0–0.5 %
All Opel gasoline straight-4 2.0 L 20 NEJ engines	0–0.5 %0–0.5 %0–0.5 %
All Opel gasoline straight-4 1.6 L X 16 SZR engines	0–0.5 %0–0.5 %0–0.5 %
All Opel gasoline straight-4 1.8 L X 18 XE engines	0.3 %0.3 %0.3 %
All Opel gasoline straight-4 1.8 L X 18 XE1 engines	0.3 %0.3 %0.3 %
All Opel gasoline straight-4 1.8 L Z 18 XEL engines	0.3 %0.3 %0.3 %
All other modifications	0.5 %0.5 %0.5 %

expand_moreCO content at increased idling speed


All Opel gasoline straight-4 1.6 L 16 LZ2 engines	0–0.3 %0–0.3 %0–0.3 %
All Opel gasoline straight-4 2.0 L 20 NEJ engines	0–0.3 %0–0.3 %0–0.3 %
All Opel gasoline straight-4 1.6 L X 16 SZR engines	0–0.3 %0–0.3 %0–0.3 %
All other modifications	0.3 %0.3 %0.3 %


Increased idling speed	2800–3200 rpm2800–3200 rpm2800–3200 rpm
Lambda sensor design	Jump type lambda sensor
Lambda value	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ
Maximum HC content at idling	100 ppm100 ppm100 ppm

expand_morePetrol conditioning time

expand_moreTest speed for lambda sensor signal


All Opel gasoline straight-4 1.6 L X 16 XEL engines	710–930 rpm710–930 rpm710–930 rpm
All Opel gasoline straight-4 1.6 L Y 16 XE engines	710–930 rpm710–930 rpm710–930 rpm
All Opel gasoline straight-4 1.6 L Z 16 XE engines	710–930 rpm710–930 rpm710–930 rpm
All other modifications	730–950 rpm730–950 rpm730–950 rpm

expand_moreVoltage swing at test speed


All other modifications	0.3–0.6 V0.3–0.6 V0.3–0.6 V

To reduce environment impact and pass government inspections keep emission parameters at the level prescribed by Opel.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1998 Opel Vectra Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Vectra Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 1998 Opel Vectra Sedan you're not only saving money, but also also improving your technical skills and learning something new.

1998 Opel Vectra Sedan B Emission

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Conquer your fears and never give up!

Opel Vectra Sedan B model years

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