Question about 2002 Volkswagen Jetta TDI

1 Answer

2002 vw bettle tdi surging, only at idle in gear. clears up under power

Car surges while in gear at ide, clears up under power.

already done fuel temp sencer changed, intake cleaned

Posted by on

  • stalizabeam Oct 08, 2008

    Not POSITIVE that its the same thing wrong, but basically after my Jetta has been sitting while I'm at work or sometimes overnight, when I put it in drive and I'm idling (at a stoplight or whatnot) it shakes heavily and feels like it's about to cut off. The problem stops after I drive it for a couple minutes though.

  • Anonymous Mar 21, 2014

    power surges under load, loses power and then takes off again, have changed plugs and filters and put injector cleaner in fuel, any other ideas?

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Volkswagen Master
  • 21,949 Answers

Is this model common rail or does it have an injector pump,injector pump has a built in lift pump and if this is weak then the transfer pressure is low which is causing scavanging.if this is the case then fitting an in line non return valve in the fuel in line can help,but more often than not fitting a low pressure in line fuel pump is a cheaper solution than an injector pump overhaul

Posted on Nov 05, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2002 mistubishi eclipse gs surging while idling dying when temp gets warm fuel problem.


Overheating could be thermostat stuck close,check coolant level.could be plug fuel filter,air filter[20000km].

Aug 04, 2014 | 2002 Mitsubishi Eclipse

1 Answer

97 toyota surges at an idle


(which engine. ?????)_
as always check all fuses. and scan the ECU for DTCs. first.
there is no need to fix OBD2 cars like 1980 cars (hard rows to hoe)
it can be 2 problems this......
lets fix the easy one first. idle. (and hope for moving issues to fix for free) it idle car is parked, so is 100% safe tests. (not moving)

so it surges at idle.
questions.?
1: hot or cold or both.?
2: low extreme RPM and high at idle.

400 to 800 RPM? surge.
1000 to 2000. what? numbers tell the tale.

first off, idle is the last thing to work right on any engine.

there are many ways to find what is wrong.
fix idle surge way.
i make sure that the engine holds closed LOOP status.
hot idle, if not , i fix that first.
keep in mind if not in closes loop and lean
all lean engine surge and guess what the ISC will add to the surge
because idle is way too slow, so the ECU open the ISC wider
and wider and its still too slow, so the ECU resets the ISC
this cause a worst hunt (surge)
the ECU adjust spark time and the ISC to get 800 rpm. (spec. look up yours)
so say , i see closed loop failed, OBD2 scan page 1
i look at the O2 sensor an its stuck lean.
if stuck lean and it really is (o2 bad?) then its lean and it will surge
.
examples.
1: i find 02 sensor bad, (only effects idle and light steady cruise)
2: i find fuel pressure at 15PSI , hopeless low .
3: i find all injectors clogged. and lean.
4: with MAF EFI, ( i find maf reading too low, (dirty) causing lean.
5: if MAP car, i find the MAP stuck hard high vacuum causing lean.
not knowing what engine you have or the idle hot surge range,
i can not go farther.

the driving bog tells me,
1: scan the ecu ,get DTCs; do that first.
2: clean MAF if car has one, ask how..
3: check fuel pressure.


my guess is engine is lean. and starving for fuel all the time.
cept WOT.

MAF cars starve for fuel if there are any vacuum leaks.
MAP cars do opposite, they race fast with 100% full power.
MAF is air density EFI
MAP is speed density EFI.
apples and oranges diffr. so what engine.


Jan 07, 2014 | 1997 Toyota Tacoma

1 Answer

Engine light on code p1296 was found the car is a 2001 jetta 80000 miles runs good all censor replace in the last five months it warms up fast idle good. pass smog. what can the problem be. thank you...


VW DTC 17704 (P1296) - Cooling system malfunction.

Coolant Temperature Sensor (CTS) is faulty and reading an incorrect temp'.

Replace with the new version of the sensor, clear the code.

If indicated coolant temp' is too low the thermostat is sticking open.

Jan 15, 2011 | 2002 Volkswagen Jetta TDI

1 Answer

Excel problems


Have you checked the primary gauze filter that is part of the fuel pump located in the fuel tank. You may have got a batch of dirty fuel that has clogged this filter which would cause fuel starvation when demand increases.

Jul 30, 2010 | 1994 Hyundai Excel

1 Answer

Engine surges of ~150 RPMs on a 1-2 second cycle under certain circumstances. Idle is smooth, driving in gear ratios 1-3 of the auto tranny is completely smooth. Immediately upon the auto tranny shifting...


Tell them to wear a ski mask the next time you pull into the dealership it helps set the tone for a stick up.

Strauss, Pep Boys, Napa (participating stores) just about anyone would do it for at least $500 to $800.

I don't doubt the diagnosis. WOW! Gotta wonder what country is in a recession...lol

Apr 09, 2010 | 2003 Volkswagen Jetta TDI

1 Answer

Car is idling fine; however, when the accelerator is applied, it surges, and if the car is put in gear, it surges so severly that there is little power


it is either a failed injector, injector with loose wire/connector, fouled sparkplug, worn HT lead or the temp sender on the engine - hyundai charge a fair bit for testing and the temp sender is usually only £27.00 at (local cheap) motor parts shop
Bit tired to explain at moment... watch this space... yawn Long day!

Jan 15, 2010 | 2001 Hyundai Santa Fe

1 Answer

2001 3400 engine idle hunting


Faulty injecters might be the problem. Pull a couple off and have someone turn the key to the on position and see if they are spraying properly

Nov 02, 2009 | 2001 Pontiac Grand Am SE

3 Answers

Wont stay running idle surges


check the EGR-valve and check all of the vaccum lines and try this website www.alldatadiy.com and another website is www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual.

May 31, 2009 | 1985 Ford F 250

Not finding what you are looking for?
2002 Volkswagen Jetta TDI Logo

691 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

60792 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...