If any of you are Porsche experts, please help.
I have a 1978 924. I recently blew the old engine after a timing belt failure, so I found an engine with 50k miles to put in it. This engine started in the original car it came from, but now that it is in my car it starts up, and idles for about 5 seconds at 900rpm. Then, it just dies and blows air/smoke back through the air intake with a poofffffffffffffff........ help. :)
2006-10-17 13:10:16 · 5 answers · asked by Jako 2 in Cars & Transportation ➔ Car Makes ➔ Porsche
The spark is good, and the fuel is good. The cold-start is doing it's job.
2006-10-17 13:17:52 · update #1
PROBABLY THE TIMING IS NOT SINCRONIZED CORRECTLY
2006-10-17 13:13:17 · answer #1 · answered by woodtigerdp 3 · 0⤊ 0⤋
The air intake boot to the CSI unit is critical any vacuum leaks will do what you describe. Check the rubber and tubing from the throttle chamber where the throttle cable and buterflys are. to the unit where the fuel lines to the injectors are. If the air sensor plate is not lifted with engine vacuum the car starts and dies. You can stick your finger up under the air filter and just barely lift the sensor plate and the car will run the SIGN you have ben looking for! Bosch injection mechanic from 1968 to now!
2006-10-17 20:23:29 · answer #2 · answered by John Paul 7 · 1⤊ 0⤋
Sounds like fuel delivery, or the mixture ratio of air to fuel is not adjusted properly
2006-10-17 20:13:45 · answer #3 · answered by Irie 3 · 0⤊ 0⤋
try sum stp gas treatment . or check your fuel lines
2006-10-17 20:21:25 · answer #4 · answered by tweed801 5 · 0⤊ 0⤋
spark ..gas.... timing. 3 basic rules. pull one of your injectors to see if its spraying in run mode...then check spark....good luck
2006-10-17 20:14:28 · answer #5 · answered by Anonymous · 0⤊ 0⤋