Overview
CTA 3420 Fuel Injection Pressure Tester
CTA 3420 Fuel Injection Pressure Tester
- Detect bad fuel pumps, bad pressure regulators, leaking injectors and clogged fuel filters
- Includes 3-1/2" (90mm) gauge with dual calibration (5-145 PSI / 25-1,000 kPa), hose assembly, and brass adapters
- For early CIS Fuel Injection systems, plus some later model BMWs
- For expanded application range, see #3422 CIS Upgrade Adapter Set (Bosch K-Jetronic C.I.S.)
- ATTENTION - If gauge assembly is removed, re-apply thread seal when replacing gauge.
- Made in USA
- Applications
| Make |
Model(s) |
Engine / Fuel System |
Years (Approx.) |
Notes |
| Volkswagen |
Golf / Rabbit, Jetta, Scirocco, Passat |
1.5L, 1.6L, 1.7L, 1.8L (CIS) |
~1975–1989 |
Includes GTI / GLI models with CIS |
| Audi |
4000, 5000, 80, 90, Coupe GT |
4-cyl & 5-cyl CIS engines |
~1976–1989 |
Warm-up regulator and fuel distributor connections |
| BMW |
320i (E21), 528i, early 6-Series |
M10 & M30 engines w/ CIS |
~1976–1983 |
U.S.-spec cars with Bosch K-Jetronic |
| Mercedes-Benz |
280, 380, 450, early 500 models |
Inline-6 and V8 CIS engines |
~1975–1985 |
Base kit fits smaller connections; larger fittings may require 3422 set |
| Porsche |
911 SC, 924, 928 (early) |
CIS engines |
~1976–1983 |
Control & system pressure tests |
| Volvo |
240, 260, early 700 series |
B21, B23, B27 engines w/ CIS |
~1976–1984 |
Requires M8/M10 adapters |
| Saab |
99, 900 (early models) |
CIS-equipped engines |
~1977–1984 |
Early Bosch CIS applications |
