Question about 1986 Volkswagen Golf

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Surges when starting

I have a 1986 golf wolfburg edition i have a problem when starting .the rpm go from 600 to 2000 about five times when i first start it .it straighten out after it warms up but it sounds like it has a miss

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Check if the fuel system is ok and check if the electronics are working as they must

Posted on Aug 08, 2009

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2000 Suzuki Esteem 1.8L.. I went to start my motor & turned it off right before started. I heard some kind of backfire. Then I started it and it's been idling high, the surging. Please help!!


scan it yet, a FULL OBD2 scan? why not?if not.
now is the time...


the 1.8L J18 engine, same as the older Sidekick sports used.
same engine , know it I do.
its the precursor to the J20, (j18 is under-stroked, j20 with many of the same parts. inside)
the back fire means explosion sound to rear end of tail pipe?
yes, that is rich raw fuel in the muffler. plus Air.
if there are exhaust cracks and then engine goes rich this can happen( a double failure)
if how ever BACK means, back to the Air cleaner, then that be different reasons, (timing)


engine now starts.?>
engine runs.? has full power, car drives ok.?
JUST?
SURGE,. you never said.

does engine get hot? 180F or more and holds (y/n)
ever get a full tuneup this decade,
most dont so i tell you, bad spark causes, misfire and raw fuel is wasted to the exhaust and sure can go boom.

surging usually means the ISC can not control idle
so it hunts, (a suzuki software engine on all 90s engines)
PCM errors, inside it. (dangerous too)
a modern car, if idle goes too high the ecu commands the ISC closed
and holds it there solid, (safe way , no hunting allowed now)]
so if this car surges, it's , lean engine.

some think flooding is surging.
and this is usually below 800 rpm,
almost stalls, then corrects, seems like a surge.

next time post rpm range of surge.?????

do not drive a surging engine, do not be like Toyota drivers. (over 800 rpm hot)

surge from 400 -800 rpm is class 1 surge.
surge from 800 to say 2000 RPM is class2, and very dangerous to some folks, (key off, get car fixed, tow it)

The ECU controls idle speeds. (hard coded servo controls)

Mar 18, 2016 | Suzuki Cars & Trucks

1 Answer

My 1986 nissan D21 ext cab 4x4 with a 30i is hard starting stumbles and surges


Bad timeing belt, or spark timing system. Last time serviced? Maybe time to take in. let them diagnose.

Mar 08, 2015 | 1986 Nissan Pickup 4WD 1986

1 Answer

1986 golf blows fuse for the brake lights every time I depress the brake pedal. It is not the brake switch. Running lights stay lit


You might try removing the brake light bulbs from each light including the third brake light and see if the fuse still blows. If it does not then replace the bulbs one at a time until it does. You will then have an area to look for the short that is causing your problem. If the fuse still blew with the lights out it will be a good time to get out the ohmmeter and check continuity for the power feed to the light sockets to ground. Not easy but a start!

Jan 04, 2011 | 1986 Volkswagen Golf

1 Answer

Idle


If the ignition timing is incorrect and or someone has turned on the idle screw without bypassing the PCM. Otherwise the IAC(idle air control motor) is defective. Possible vacuum leak also.

Feb 13, 2010 | 1986 Honda Accord

1 Answer

Car starts fine..Idle is fast...stalls after car warms up


Check for vacuum leaks. Also try cleaning the ISV.


If that doesnt work go to vwvortex.com and post your issue there

Jul 08, 2009 | 1989 Volkswagen Golf

2 Answers

22r carb dumping fuel at 2500 rpm will not pass smog.Was rebuilt and is in smog specs. at idle.


Fill the tank up but do not top off.

Ran the trunk for 15-20 minutes on the highway and recheck the fuel surge condition at 2500 rpm.

If it stop surging then you has a weak fuel pump.

Change the fuel filter will also help.

Also check the fast idle setting.
==
If everything checks out then set a smog check appointment in the EARLY MORNING.

Jul 05, 2009 | 1986 Toyota Pickup 4WD

1 Answer

Front wheel bearing 1986 Golf


Mount the tool on the wishbone and extract wheel bearing. Application example: ...... KL-0215-410 Press Tool Kit VW Golf III without Hydraulic Cylinder

Jun 28, 2009 | 1986 Volkswagen Golf

1 Answer

Idle is too high


Have you tried cleaning your idle stabalizer valve with carb cleaner?? Sometimes its the simple things that make a huge difference..

Mar 16, 2009 | 1986 Volkswagen Golf

1 Answer

1986 VW Golf 8 valve - Why does my car shake @ 1200 RPM ?


it could be that your clutch/pressure plate/flywheel is maybe out of balance. i think thats about the only thing, if your engine seems fine.

Nov 28, 2008 | 1986 Volkswagen Golf

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