74 2.0 Idle/Stall remedy suggestions appreciated, Ran fine one day, not so fine the next |
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74 2.0 Idle/Stall remedy suggestions appreciated, Ran fine one day, not so fine the next |
Jon Dugan |
Jan 3 2016, 02:17 AM
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#1
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Newbie Group: Members Posts: 13 Joined: 3-January 16 From: Bay Area Member No.: 19,521 Region Association: Northern California |
Hello fellow 914ers,
First post here... My 74 2.0 was my daily driver for the past 5 years until it decided not to be... Ran fine one night, parked it, next morning no so much. Starts right up no problem but rev above say 2000 RPM, it wants to bog out and stall. I do get an occasional smooth rev through to red line though. Tried advance/retard adj with the dist and can now only find idle around 1600 RPM (normal idle was about 600 RPM I think) but then lose it whwn I try to dial it back down. Dist checks out fine ($65 test by Porsche mech in Campbell). The guys at PH suggest maybe the fuel pressure sensor (grenade) has failed. I have limited troubleshooting skills and budget and was hoping to get back into AX this year after a long hiatus so any suggestions will be much appreciated. Thanks in advance !! |
Jon Dugan |
Mar 19 2016, 10:44 AM
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#2
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Newbie Group: Members Posts: 13 Joined: 3-January 16 From: Bay Area Member No.: 19,521 Region Association: Northern California |
Back for more suggestions... Just replaced the MAP with a New/Rebuilt one... Car started fine and idled @ 1800 rpm or so, lower than before, but still can't dial it in.. It still intermittently revs smoothly for a few revs then reverts back to a flutter rev @ 2000 RPM and above. Both at the same distributor position. I spent about an hour advancing/retarding the timing with the distributor and found a sweet spot for a smooth rev through to about 5000 RPM, but as soon as I tightened the distributor in that position, the flutter rev returned...Argh! Hoping one of you guys can offer any other troubleshooting suggestions and/or recommend a mechanic preferably in the Hayward area with good 914 experience that I could tow to and not be taken to the cleaners so-to-speak.... Thanks in advance !!!!
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