1987 VW Cabriolet Idle Mixture Setting

We adjust the idle mixture in an 87 VW Cabriolet which has CIS fuel injection and check the O2 sensor function. This would apply to pretty much any 1980's VW with CIS Lambda or K-Jetronic (Lambda) fuel injection. I think 1987 is the last year for use in the Cabriolet

[Citadeltactical]

Bryan, Thanks for the video's restoring my 87 Cabriolet (my first and last new car) that has been sitting for 15 years.

[cd]

Thanks .so.much for.these VW vids. Big help.

[supwarriors]

I own a 1990 cabriolet that has ignition problems. I want to fix it and don't know where to start. I also believe the car has issues with the mixture. I think these cars are a lot of fun to drive.

[gorrowler]

hey bryan. is there a reason why my o2 sensor would be stuck on .8v? also my frequency valve isn't buzzing and duty cycle comes out to 11 instead of 50+-

[cesaraugustoparedesvelez]

Hello, Where is the crankshaft sensor of cabriolet 1987 ? My mechanic is not sure if that part comes in that type of engine. Help, please!

[broadshoulderbeaver]

Thanks for the tip on the O2 sensor quick test!

[nxesr]

Couldn't see a dam thing on the multimeter, was really getting into your video but no visible readings??

[samuelprieto]

Bryan,
Thanks so much for all these videos, they have been so helpful with my 92 cabby. Im having trouble with a hunting idle. I started with fixing all the vacuum leaks I could find, including ordering a new idle air adjustment screw because it appeared to be missing altogether. I went to put it in today and it turns out that a previous owner must have attempted to tighten it down and snapped off the head. What's your professional opinion? Any suggestions?
thanks,

[ACORDE]

Hello Bryan, I have a question about the additional boost valve (2) page 5-28 idle speed boost valve. (fig 5-17) brown is ground, and the wire color green got cut and I"m not sure where is the end connection close to the front right side light as a reference location. could you help me? I have a 1988 Cabriolet, .

Also thank you for this video. it will help me to adjust the idle. I just to do it just by sound, Now I understood the reason for that connection and the use.

[nickgrillo]

I have an 86 golf with cis on my setup the throttle body and injection is on the opposite side. I understand the adjustment, but where would I hook up my leads for the swell meter on my car?

[Faceoff]

Do you happen to have electric schematic of sensors around K-Jetronic? We have a Scirocco '91, 1.8 8v, and it was switched to carbs. While doing so, somebody cut off some sensors on left side of the engine bay (looking at the engine) - so we have 6 wires for 3 sensors and dont know which go where :D colors are: black, black, brown, brown/black, green/wite and red/white. Bundle is behind engine, below inlet manifold. I know some wires goes to that relay or what it is, mounted on the right shock absorber.

[PedrosGarage]

Hoping this takes care of my surging loping idle.

[kevinhernandez]

Any chance you can give me some ideas on what the issue might be on why my 87 VW Cabriolet Chokes out almost immediately after turning on.

[DolphinsEatFish]

could you help me out? I've timed my 87 cabby, starts up perfect it idles smooth at 1000rpm but will choke and stall when i press the gas. won't run correctly unless i advance the distributor ALOT and even then it still won't rev past 4000rpm struggle for power and it will hesitate and jump upon acceleration. ive replaced all vacuum lines among other things and am currently at a loss

[jaimebautista]

Hellow i hope you can help me out you seem to know a lot about cabriolets
I just buy a 85 cabriolet by karman with the 1.8 and got a lot of old gas on it so i just take the tank out put a new one in change both the fuel pump inside and out side(i did broke the fuel reserve filter waiting for the one to came in) put brand new sparkplugs on it new coil new cables for the sparkplugsbut the car is just starting and then dying a few seconds later when i try to give it gas it dies right away do you know was could be happening or where can i star also change the fuel pump relay

[gorillagloots]

Instead of adding "sorry for the glare" how about stating the meter reading or just uploading a video with no glare? Totally sucks. Duh!

[goldwolf]

What a shitty wiring design... no way see they went obsolete. The Miata didn’t go obsolete...