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On 28 Jun 2003 at 12:43, jim wrote: > --- Jim Adney <jadney@vwtype3.org> wrote: > > On 26 Jun 2003 at 13:36, jim wrote: > > > > > > After the car has been started, but before it's fully warmed up, the engine > > > tends to buck unevenly and does not have full power (25 mph in 2nd, tops). > > > After about 10 minutes, the the idle evens out. > > > > After this, does it have normal power? > Once warmed up, the car has normal power. No problems getting onto the highway > and the like. > > > 1969 Squareback , 1972 "E" FI system, 1968 Dizzy, timed > to 0 TDC, no shaft play, vacuum and mech. adv. working. > > Do you have the > complete 72 FI system including the ECU, other than the dist? > The ECU is a type 4 E-brain. But, it was like that when I bought the car and > ran fine so I left it under the "no broken, don't fix" category. However, I did > replace a faulty pressure sensor, both the old and replacement had untampered > black caps, but I wonder if the faulty pressure sensor could have been specific > to the T4 brain now that I think about it. I have the PS I removed and it's > number is 0 280 100 116, which I assume is the Bosch number, there's also an 030 > near the vac. hose connection. Was the one I took off also a T3 PS? The 116 is a 73 type 3 PS, so that sounds fine, but I think you should get yourself a consistent set of parts as your next step. You want a 73 type 3 E brain: 0 280 000 048. Assuming that everything else you then have is correct for 72 or 73, you will then have a consistent 73 FI system. There are just too many minor differences between parts for different models and different years to play mix and match when you're having problems. Once you get everything working right, THEN you can play mix and match, but at this point I'm worried that it just muddies the waters. OTOH, the problem could certainly be something simple that we just haven't gotten to yet, like the cyl head temp sensor.... -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org