 FI Question |
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| lsintampa |
 May 7 2014, 08:07 AM
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#1
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Senior Member  Group: Members Posts: 520 Joined: 28-January 13 From: Tampa, FL Member No.: 15,441 Region Association: South East States  |
75 / 2.0 FI
Backdated exhaust. Motor recently rebuilt (so recent, car is still in the shop being tuned). Shop is saying to me: 1 Cold start - fires right up - runs perfectly while cold 2 Mid Range at idle - runs rough - wants to stall 3 Warm at idle - runs perfectly Will know more later today, they can only see the issue for about the four minutes it takes to get warmed up. So they only have a short window to make any adjustments. New hoses all around, new fuel pump and filter, CHT, there isn't much that isn't new - exception Dizzy, and most FI parts (MPS, etc.) Just tossing it out there in case anyone has any thoughts I may be able to pass along. Thanks, Len |
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| r_towle |
May 7 2014, 08:18 AM
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#2
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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Check the number on the ECU and the number on the CHT, make sure they match.
Rich |
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| boxsterfan |
May 7 2014, 08:35 AM
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
This is an excellent resource for D-Jet troubleshooting.
http://members.rennlist.com/pbanders/DJetP...tm#troubleshoot My 74 2.0L experiences the same issue. Part of this is simply known issues with the D-Jet injection on the motor. There is a spacer that you can get from 914ltd http://www.4wts.com/media/?a=pp&id=138...1569425&t=l that helps with the warm-up issue. I put one of these spacers on my car and it is certainly much, much better. It used to want to die when pulling up to a stop sign during warm up but now it does not. I still have some idle surging between 600-1000RPM during warm-up but once warmed up it is rock solid 900-950 RPM. Read the whole pbanders site above and make sure you have matching parts in the tables that he put together. |
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