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Help, Hesitation ?

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Old Apr 20, 2008 | 12:40 PM
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Default Help, Hesitation ?
The 86.5 has been hesitating alot off the line. It just seems like there's alot of pedal now, with no action ? The pedal just feels sloppy now. If that makes sense. I've done the following so far to try and remedy. I'm lost

- New Temp II sensor
- Airbox Sensor
- Rebuilt MAF w/ New O-rings, cleaned MAF w/CRC and put in stock air filter.
(feels like a MAF problem, but I just replaced it.)
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Old Apr 20, 2008 | 01:41 PM
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Derrick - recheck vac lines - maybe something got knocked off when you did the MAF work. Look at 7 way splitter down in the vee. Also, if the vac line came off up on the firewall where the line comes in from the computer, you will have the same hesitatioin issue....
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Old Apr 20, 2008 | 01:48 PM
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I will check some of the lines today. Maybe I can drive to the burgh soon and we can have a "help Derrick's car be fast again" session ?. I can repay the favor w/ 928 parts.
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Old Apr 20, 2008 | 02:58 PM
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A good way to check if there's a leak at the 7-way is to pull off the hose at the EZ-F. There should be strong vacuum there at idle.

What do the spark plugs look like?
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Old Apr 20, 2008 | 03:38 PM
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Are you driving it to Hershey? Also, my friend just bought an '84, and he is looking for spare parts - do you have the rear quarter passenger side window trim?
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Old Apr 20, 2008 | 03:40 PM
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Originally Posted by StreetJustice928
Maybe I can drive to the burgh soon and we can have a "help Derrick's car be fast again" session ?. I can repay the favor w/ 928 parts.

btw, always up for a tech session! (and we do this stuff for fun - no payment of any kind - except the liquid kind - is necessary )
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Old Apr 20, 2008 | 04:48 PM
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OK, now I feel like a dunski !

I pulled the MAF again and... I had the seals in backwards..(large seal on MAF, small seal inside). I didn't realize the larger seal was even in there, it was completely squashed flat. So I got it out (in 3 pieces) Put the new seals in properly, installed the MAF, and I really heard it seal this time. Took it for a ride, vroooooom. thanks !

also, cleaned up alot of crap under there, found some old broken MAF seals, which means the original MAF I pulled wasn't even sealed.
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Old Apr 20, 2008 | 04:52 PM
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Sorry Ed, no body parts left except the tan seats from my 86.5 The rest are misc. engine parts and some other goodies.
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Old Apr 20, 2008 | 04:56 PM
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Porken...

I did a tune up about 200miles ago...caps/rotors/plugs. It's running much better now, but I'm still going to check that vac line you mentioned at the computer to see if there is any leaks. thanks
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Old Apr 20, 2008 | 06:00 PM
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when putting a new MAF in an 85/86 engine you need to set the base afr setting, dont forget that
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Old Apr 20, 2008 | 07:00 PM
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How do I go about doing that ? any help setting the base AFR setting ?
Last edited by StreetJustice928; Apr 20, 2008 at 10:16 PM.
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