Last post on Jun 11, 2013 at 1:53 PM
You are in the Volkswagen Jetta
What is this discussion about?
Volkswagen Jetta, Engine, Sedan
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#153 of 304 Re: 2007 Jetta 2.5 [cry]
Dec 28, 2007 (10:29 am)
From a document that used to be on VW website (c. 2005), the following met their 502.00 spec at that time:
Volkswagen Part No. ZVW 352 540S 5W-40
Castrol Syntec 5W-40
Chevron Supreme Synthetic 5W-40
Elf Excellium LDX 5W-40
Kendall GT-1 Full synthetic Motor Oil 5W-40
Mobil 1 0W-40
Motul 8100 X-cess 5W-40
Pennzoil Synthetic European Formula 5W-40
Pennzoil Synthetic European Formula Ultra 5W-30
Quaker State Full Synthetic European Formula 5W-40
Quaker State Full Synthetic European Formula Ultra 5W-30
76 Pure Synthetic Motor Oil 5W-40
Texaco Havoline Synthetic 5W-40
Total Quartz 9000 5W-40
Valvoline Synpower 5W-30
Valvoline Synpower 5W-40
#154 of 304 Engine Surges
Jan 29, 2008 (7:08 pm)
HELP!! Engine Surging at 50 MPH, 500 RPMS fast & MIL light. This has been a thorn in my side for over 2 months. Recently my 02 VW Jetta, 95000 miles, needed the transmission rebuilt because the reverse went out. It is no longer under warrenty and was cheaper to have it rebuilt then a new factory transmission put in (mistake #1). Ever since I got it back the engine surges on the highway causing the MIL light to come on, about 50MPH and runs about 500RPMs faster from what I can tell. The MIL light states "Torque converter circuit malfunction." Also, it may seem to be starting roughly. Here is a list of items that were replaced: solenoids, valve body, wiring harness, torque converter (twice). I am being told it is only an occassional problem (I notice it everytime I get past 50), nothing can be done about it and it may be my computer. I LOVE my Jetta, but am sick of dealing with this latest round of problems.
#155 of 304 1998 Jetta 2.0 - Intermittent engine stall
Feb 09, 2008 (12:21 pm)
I have a 1998 Jetta 2.0 with 63,000 milles. It starts fine, but when accelerating the engine wants to die after about 2 seconds. If I take my foot off the accelerator at that time, it will not die and I can accelerate again for about another 2 seconds. Thid repeats at about 2 seconds the entire time I am driving. As long as I stop accelerating every 2 seconds, I can eventually get it up to speed, but if I try to continue to accelerate, it will die. The error codes scanned are P0103 & P1580. Did anyone else have these problems or have any ideas what may be the cause based on these codes?
#156 of 304 Re: 1998 Jetta 2.0 - Intermittent engine stall [tdurniat]
by MrShift@Edmunds HOST
Feb 09, 2008 (5:01 pm)
Code 1580 says a throttle actuator problem. There are diagnostic procedures to test this but you need a tool like a VAG-COM. Jettas seem to throw this code a lot.. Also the P103 code is the MAF circuit input, which may be related, I'm not sure. You'd need a wiring diagram to see if these two components happen to have something else in common like a relay or ground wire or whatever.
You can always try to clean the throttle body and MAF sensor thoroughly (using the correct solvent).
A new actuator is very pricey. You don't want to be guessing on that part.
#157 of 304 Re: 1998 Jetta 2.0 - Intermittent engine stall [Mr_Shiftright]
Feb 09, 2008 (6:28 pm)
I have never heard of the throttle actuator going bad.... but it may be "out of sync" with the accelerator pedal. This could happen if somone mistakenly touches the accelerator pedal while starting the engine. (One should NEVER touch accelerator pedal when starting engine!!) Also, disconecting battery may lose the adaptation settings.
There is a procedure to re-synchronize the throttle-pedal to the throttle-plate. This procdure is called "throttle adaptation" by VW. Here is a synopsys of the "throttle adaptation" procedure from the Bently manual:
1) WITHOUT touching accelerator pedal, turn key to "run" (do not start engine)
2)wait several seconds for onbaord diagnostics to complete.
3) slowly press accelerator pedal to floor and HOLD for at least 5 seconds.
4) slowly relase accelerator pedal
5) turn key off
The above procedure also resets an automatic xmission to the default settings.
If the above does not help... you may wish to search the internet for "throttle adaptation" to learn more about it. Some folks have reported that they had to do other things (like disconect battery 1st, or leave key in "ON" position for 3 minutes before pressing pedal down.)
#158 of 304 98 jetta 2.0 swap for 1.8 turbo?
Feb 16, 2008 (3:38 pm)
is it possible to swap my 2.0 for a 1.8t motor in my 99 vw jetta?i only honda swaps not vw...thanks for all the help!!!!
#159 of 304 Re: 2000 Jetta GLS Engine Problems [gitgo]
Feb 26, 2008 (7:03 pm)
Hey, im curently having the same problems with my car. I have a 99 Jetta. (older body style) and it cuts out at 2-3 grand and maxs at 35-40mph. i changed my spark plugs, my wires, fuel filter, and nothing came out of it. a friend suggested coils like you had been suggessted. but you say it didnt help? another friend says cam sensor. did you find out what the problem was??? thankx for your time
#160 of 304 2001 Jetta GLS 1.8T No Power 106K
Mar 06, 2008 (6:17 pm)
Hi all. I'm having major problems. First let me say that I replaced an ignition coil a few months ago. I had a difficult time locating one. Once I changed it everything was fine. I did drive the car for more than a week with a bad coil though.
Last Thursday on my way home from work the engine started running rough and losing power. I figured it was a coil again. The next day I swapped out each coil with a good one with no change. I then changed the plugs. It ran rougher. Then ran a little smoother. Now it is very rough. I had the codes scanned at Advance Auto Parts. I'm getting P0172 - System Too Rich (Bank 1) and all four cylinders are misfiring. They keep switching around so I know its not the ignition coils.
I have read that the catalytic converter can be damaged when driving with a bad coil. I think the cat is bad and have ordered a universal one online. I drilled holes in the old one today hoping it would improve engine power. That was dumb. Loud but no change. I can't drive it anymore until I fix it. I can't afford to take it to a mechanic.
Could the problem be something other than the cat? Would a bad O2 senser cause the engine to misfire. I also have the rotten egg (exhaust smell). What causes the system to be too rich? Thanks
#161 of 304 Re: 2001 Jetta GLS 1.8T No Power 106K [iyoulow]
Mar 06, 2008 (6:56 pm)
What causes the system to be too rich?
leak in intake plumbing
trubocahrger not pushing enough air thru engine
Try this, UNPLUG the electrical connector from the MAF and then start engine and drive for a couple days. (This will force the computer into "limp mode" and may turn on the CEL.) If it runs better, suspect that your MAF is sending bad signals to the computer and may be bad.
Many folks have reported that when MAF is bad, the engine will run BETTER with it disconnected thus forcing engine to run in "limp mode".
#162 of 304 Re: 2001 Jetta GLS 1.8T No Power 106K [bpeebles]
Mar 07, 2008 (5:54 am)
The MAF has been bad for a while and unplugged. The car ran fine regardless. It is definately something else. Can the O2 senser cause the power loss and the rotten egg smell?