Vw cabriolet cis. I was told the engine is a 1. I don't know how the problem came about because the car was sitting for months before I got ahold of it. The system worked so well, in fact, that it was used in pretty much everything Volkswagen , Audi, Mercedes, and BMW put out – to name a few manufacturers – for decades. I adjust the idle mixture on my 1988 VW Cabriolet which has CIS fuel injection. What's really throwing me off is the presence of the OXS light in the cluster and the mileage counter on the speedo cable but yet no O2 sensor or Frequency valve. Like. When I go to start the car, 90% of the time it starts but on occasion, it floods and won’t start. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Quick video showing how to remove the shrouded fuel injectors from a Mk1 VW. This video demonstrates checking and, if need be, adjusting your K-Jetronic-Lambda fuel injection system. If I leave my foot on the gas when it cuts off, it stays off, but if I let off and get back on it again, it comes back on. If I’m able to clear the flood, sometimes then I can get it started. The issue I’m having is this. J. 8l cis has a hot start problem. com Aug 29, 2014 · vwvortex. Usually in the 2nd and 3rd gear. This test of the Bosch CIS system checks the system pressure as well as the control pre Apr 23, 2023 · Based on what's been said here so far it's between CIS and CIS Lambda. Jun 30, 2024 · vwvortex. Jan 19, 2004 · 1992 MK1 VW Cabriolet 2014 MK6 VW GTI. com-- Your online Fuel Pressure Accumulator: CIS or CIS-E, Rabbit, Golf, Jetta, Scirocco. Anytime I do a hard acceleration, it seems to cut off right at around 4K RPM. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada May 26, 2023 · So my problem is that my cabriolet with a 8v 1. Before doing anything, let's discuss what CIS, K-Jetronic, lambda, and duty cycle are so that you get a very basic understanding of how the system works and what it is you'll be testing. Content on vwvortex. Oct 10, 2019 · vwvortex. There is an ecu present above the passenger footwell. Nov 3, 2017 · Barring vacuum (air) leaks, which is the most common cause of stumbling in a CIS injected car, it sounds like you have a hot start problem, which is caused by inadequate residual fuel pressure (the pressure that remains in the system for 1/2 hour or so after shut down). K-Jet lambda uses an oxygen sensor, catalytic converter, and an oxygen sensor control unit. more. com for more accurate CIS repairs. The fuel distributor is the central point of your fuel injection system. Apr 23, 2023 · Mechanical continuous injection system (CIS). Jul 23, 2021 · I demonstrate how to test the fuel pressure in our 1988 VW Cabriolet. Dec 18, 2017 · Through my related thread on "CIS and Fuel Pressure Distributor Seat" for my 1978 VW Rabbit where I discovered (with the help of others) the control pressure regulator was plugged at its inlet and should be replaced, I found out there were about 60 variations of it by Bosch. 00 Add to cart #133_344 Brass Insert ’85-’92 CIS Injection, Golf/Jetta/Passat $ 14. Jettaboy1884 A VW CIS-E Air Flow Sensor including fuel distributor would probably be easier to find. The following are the most commonly-used CIS systems in VW's: CIS-basic The original online guide to the Volkswagen Cabriolet & Rabbit Convertible. :c&b: 2000 Jetta VR6 (sold) 2016 Golf GTI www. The fuel pressure accumulator is designed to hold readily available fuel pressure at the injectors for quick starting. vwvortex. A quick explanation of how to adjust the idle on a Mk1 Volkswagen. K-Jet basic does not use an oxygen sensor and catalyst (but uses an EGR system in most cases). I have a 1992 vw cabriolet. His videos on youtube are under "this old motor" another is the rustyrabbit. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Volkswagen Cabriolet DIY Guide Relay/Fuse Diagrams & Electrical System Notes: • 1980-1982 cars use ceramic fuses! • 1980-1982 cars had a recall for the fuel pump Dec 12, 2014 · How Volkswagen's Continuous Injection System (CIS) Works Early fuel injected Volkswagens have the most ingenious fuel delivery system I've ever seen. This would apply to most 80's VWs with CIS Lambda or K-Jetronic (Lambda) fuel injection. Apr 5, 2023 · In regards to CIS-E being an upgrade, it's on page 89 in Per Schroeder's Volkswagen Sport Tuning for Street and Competition. com is not in any way affiliated with Volkswagen AG VerticalScope Inc. Vw fuel pressure accumulator. Jan 20, 2013 · Your 1987 Cabriolet has CIS fuel injection. This Oct 20, 2009 · "CIS" encompasses many variations of the same fuel injection system; "non-CIS", to me, means carburetor or Digifant or Motronic. CIS stands for: Continuous Injection System. $125 core charge. If it fails you are not going anywhere. 00 Add to cart #133_240 Bosch Universal Oxygen Sensor (3 wire) $ 80. Oct 15, 2023 · Look at Cabby-Info. 8l from a 99 Volkswagen. I adjust the idle mixture on my 1988 VW Cabriolet w How to build a cis test rig. K-Jetronic is a mechanical fuel injection system developed by Bosch in the 1970s and is used in a wide variety of vehicles around the Jul 25, 2024 · Mechanical continuous injection system (CIS). 00 Add to cart #121_202 CIS (Digifant see notes) Coolant Temp Sender $ 30. Save Share. These injectors were pulled from a 1988 VW Cabriolet and rebuilt by installing Bosch Oxygen Sensor, ’90-’93 Cabriolet Federal, ’90-’93 Fox Fed $ 135. com is generated by its users. It has a problem with surging RPMs (RPM not constant or smooth) when at idle and when driving. VW fuel distributor. You'll have to get an intake manifold, then the carb, air filter, throttle cable modification, a new fuel pump [the CIS is too much pressure], removing the CIS fuel pump and hardware to allow free flowing fuel to the carb fuel pump, and probably a whole bunch more that I'm not thinking . Cabby-Info. Under normal driving, everything seems OK. I’m only making a post because I can’t find an answer to my problem anywhere else. Fuel is built up at the intake valve until the valve opens allowing fuel to enter the combustion chamber. There are two types of K-Jetronic (K-Jet for short) installed in Cabriolets: basic and lambda. K-Jet lambda uses an oxygen sensor, catalytic converter and an oxygen sensor control unit. It seems as though that book is one of the holy grails of early VW tuning, but of course, that doesn't mean every page is correct and it seems the general sentiment here is that information is in fact wrong. com is an independent Volkswagen enthusiast website owned and operated by VerticalScope Inc. Fuel Distributor: GTI, GLI, Scirocco & Cabriolet 83-89 & Others. Oren or Moljinar on the Vortex is the Guru of the CIS, and he has a videos where he does a lot of how to's. It will just crank and crank. This specific demonstration is on a 1988 VW Cabriolet but is similar on just about every C May 29, 2014 · vwvortex. 00 Add to cart #133_320 CIS Fuel Volkswagen Cabriolet Engine Diagrams JH (CIS-lambda): 1 Radiator cooling fan and shroud 2 Radiator (A/C condenser, if installed, is in front of the radiator) 3 A/C compressor 4 Alternator 5 Oil dipstick 6 Engine cylinder head and spark plugs 7 Engine block 8 Valve cover, oil filler cap 9 Timing belt cover 10 Oil filter flange 11 Ignition Jul 27, 2008 · CIS is a wonderful system, if you know what the hell you're doing when working on it. Mine ends in a part number of 011, vary basic. We now stock these high quality remanufactured fuel distributors for CIS Volkswagens. Dec 19, 2023 · I am new to this. I’ve checked Vaccum leaks, the injectors for leaks, csv for leaks, wur pressure, fuel pump pressure, made sure the check valve holds pressure, air/fuel is properly set, idle is Mar 9, 2009 · I have an 86 VW Cabriolet with the 8 Valve motor and CIS injection system. Apr 14, 2016 · I have a 1987 VW Cabriolet CIS I'm in Apex NC. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Feb 19, 2020 · I get the your issues about CIS but the resolution about a cheap carb swap is not going to be cheap or easy. 2 Apr 26, 2024 · Hey all so I bought a 1988 cabriolet it has the stock engine with the ktronics, it was running good and the reason it went into the shop originally was for, a coolant flush, shifter linkage to fix terribly bad shifter and to reseal my driver/pass window. How to test cis fuel pressure.