Starts and Dies 88 spider - Page 6

Robusie · #76 (**permalink**) 07-08-2009, 04:59 PM

Hello again, Today I tested with some spare injectors. No signal to open was received, hence the not running after CSI stops firing.

I guess that I will recheck the (sensors) providing inputs to the FI ECU. If that fails I will have to look for a wiring fault.

Does anyone have any ideas on where to focus, given that this started suddenly?

Any additonal tests to help me narrow down would be good too.

Elio Comello · #77 (**permalink**) 07-08-2009, 05:23 PM

One BIG thing you should try is to use a known good FI ECU to sub yours, that would rule the ECU out at least. Also to "fire" the injector the unit has to make a ground on the injector coil, +12V is always present.

So make sure the grounds of the ECU are solid.

TTFN Elio

Robusie · #78 (**permalink**) 07-12-2009, 10:26 AM

I cleaned and reconnected the grounds and tested the ground at the FI ECU connectorand it tested good.

If I can summarize:

- I have fuel pressure so the pumps and relays can be ruled out.
- I have spark with the timing light, so think I can rule out the ignition ECU
- Leaves me supsecting the FI ECU and its subsystems.

As papajam said, the L-jet is very simple.
it needs to work: MAF voltage, water temp (the white one), tach and power.

I will recheck each of these at the FI ECU connector. Don't have access to another ECU, so if these come OK, I guess I have to find an ECU.

**aggie06G-pa** · #79 (**permalink**) 07-12-2009, 11:44 AM

Please tell me---what is the FI ECU ? and where is it?
Thanks

**peterlund** · #80 (**permalink**) 07-12-2009, 01:04 PM

Quote:

Originally Posted by aggie06G-pa

Please tell me---what is the FI ECU ? and where is it?
Thanks

Elio Comello · #81 (**permalink**) 07-12-2009, 06:32 PM

Robusie,
Please note there are 2 FI ECU's, you need the one with the green Bosch tag
0 280 000 221
I have an extra one PM me if I can help.
Elio

Robusie · #82 (**permalink**) 07-20-2009, 10:01 PM

Hey all, Sucess! The culprit was the FI ECU. Took a while to eliminate everything else, but on the positive side I have a nicely tuned Jetronic system now.

Special thanks to papajam and ghnl for their help. They are great guys and an asset to the group.

**ghnl** · #83 (**permalink**) 07-21-2009, 08:55 AM

Hey! Did he just call me an a$$...?

hattie102 · #84 (**permalink**) 07-21-2009, 09:09 AM

Wouldn't "asset" be a small a$$?

My issue appears to be the fuel injectors. Rich from Cruzin Performance says one of the four had a bad solonoid. He's cleaned and tested the other three and they are on their way back. Hope that fixes my problem and I'm back on the road soon too.

Hattie

**aggie06G-pa** · #85 (**permalink**) 09-05-2009, 03:41 PM

My G-son finally got extra time from his work this week end--Labor Day. The culprit?? was the FI ECU. Replaced and all smiles

Lots of cudos to ALL. That means you--Lund and gnhl. As soon as I have time to sort out my 84 Spider, I'll post a picture or two of my G-son's 88 that is now running. Mucho Grass to all.
Bobby--I used to race alfas in SCCA from 1967 untill 1977, then became a Steward in SCCA. Once hooked on Alfas you can't get away. I now have two Alfettas and two Spiders and an 74 Saab Sonett. Thanks to all.