problem starting think it is fuel pressure.

[hoodsy]

wow ray, you really don't like anyone to disagree with you do you. anyway good info all the same and I do agree with getting a new harness, and as soon as I can come up with the parts for it I will make a new one. anyway for now I just finished getting all the electrical working and should be able to get her out for a drive next weekend. I will let you all know how it goes.

[vwbill]

I do see Ray's point about connectors... I was always a soldier guy over crips but with the Djet system and it being based or fixed in the ECU for values I can see the issue of conbined change of resistance through out the system wiring... If the CHT can be such a issue I'm sure a thirty plus wiring harness in there like the hard starting in the simple BUg after she is hot.. There is that guy Ray mentioned who makes wiring harnesses for 914's I believe and I am really thinking about getting one of his engine harnesses! They aren't cheap but sweet work/quality and eliminates a lot of issues! I guess it must be like a stream of water and you want that stream to get to the end with the same volume but all the harness/componant connects/age/ect. start adding over all to a loss of volume and performance issues or even to the point of a non drivable point if you have fuel issues on top of it. Can't wait to hear how she drives and runs after you get her setup. Have you tested compression? I just like to hear what your sistuation specs out at and what you are using as a setup like spark plugs/ componant specs/ fuel pressure.... It helps me to try other setups over mine! Thanks again guys for all the great posts and info! Bill
p.s. http://members.rennlist.com/914_wiring_harnesses/

[raygreenwood]

Sorry...not trying to be.....ugly. I hope I did not come across that way. Its just that I have done a LARGE amount of research on the harnesses for EFI. I had to deal with the poor connectors from D-jet at an early age. My first car was a 411.
It was not until about 2000 that I came acrosss a lot of the reasearch that AMP and Bosch had done. That....and the blueprints on line for thousands of the most curren tfuel injection terminals. That....and the original blue prints for D-jet terminals from 1966. That also included lab testing data on connectivity of the different types, failure reports and information on failures of solder joints. Its just fact that uniformity even in machine soldering....has always been a problem that does not due well over extended periods in electronic fuel injection systems.

I love to solder. I amexcellent. But I saw first hand the failures from an early age when working on this "type" of system. It has too much vibration (as all EFI systems do) too much heat cycling and too much exposure to weather for solder to be used with any long term effectivness and reliability. Thats why they spent so much on crimping technology.
Its actually cheaper to solder....with automated machines that have been around for the better part of 40 years.

Due to the complexities of plating and manufacturing, the EFI crimp on terminals are actually quite expensive. In the range of $4-8 each depending on what they are made of and how they are plated. Ray