2000 Jaguar S-Type runs ruff

MSTAHL2000

MEMBER
2000 JAGUAR S-TYPE
6 CYL
2WD
AUTOMATIC
135,000 MILES

When the car is first started, it runs very ruff. To the point where I have to put it into neutral when I am at a stop light. Once the car warms up (5 to 10 mileage) the car runs great.

Weather has no impact on this. Both cold and warn days.

Check engine codes :
p0420
p0430
p1386
p1388

3 Replies

DAVE H

MECHANIC
13,383 POSTS

Hello .. thanks for the donation .. much appreciated

P0420...Catalyst Efficiency Below Threshold (Right Bank)
P0430...Catalyst Efficiency Below Threshold (Left Bank)
P1386...Variable Valve Timing Advanced (Left Bank)
P1388...Variable Valve Timing Retarded (Left Bank)

When I read the codes you had retrieved I was in 2 minds on what your fault was ? a bad CAT or VVT solonoid because the codes are indicating both left and right CAT faults .. i'm advising you to test the VVT solonoid first ..perform the following test and let me know the results ?

DTC P1385, P1386 OR P1388: VARIABLE VALVE TIMING SOLENOID (LEFT BANK)

Turn ignition off. Disconnect left Variable Valve Timing (VVT) solenoid harness connector.

Measure resistance between VVT solenoid terminals. If resistance is 5-20 ohms, go to next step. If resistance is not 5-20 ohms, replace VVT solenoid and retest system.
Turn ignition on. Measure voltage between ground and VVT Solenoid harness connector Green/White wire. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair power supply circuit and retest system.
Disconnect PCM harness connectors. See Fig. 8. Check continuity of White/Pink wire between VVT solenoid harness connector and PCM harness connector PI-1 terminal No. 10. See Fig. 9. If continuity exists, go to next step. If continuity does not exist, repair open in White/Pink wire and retest system.
Check continuity between ground and VVT solenoid harness connector White/Pink wire. If continuity exists, repair short to ground and retest system. If continuity does not exist, replace PCM and retest system.

hope this helps .. let me know

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Tuesday, June 30th, 2009 AT 4:37 AM

MSTAHL2000

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2 POSTS

Do you know the part number for the VVT solenoid?
Which side is consider left? I presume it is the drivers side becasue the drivers side tail pipe is the one that spits

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Tuesday, June 30th, 2009 AT 9:23 AM

DAVE H

MECHANIC
13,383 POSTS

I do not have the part # i'm afraid a simple phone call to the jaguar dealer parts/service desk will supply this information and cost although most good autoparts stores will be able to get you the part .. if you have a right hand drive jaguar then the left head is on the drivers side ? looking from the front of the car at the engine, left is left and right is right ..

hope this helps