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What is causing the stuttering
Posted by rotor [Email] (more from rotor) on Sat, 11 Aug 2007 06:33:39
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I recently bought an '88 SPG to share garage space with my '88 9000T 5 speed. My 9000T has an unmodified APC and it happily boosts into 1/4 red and sometimes more on 98 RON, the SPG would only boost to the end of the orange, so I wound the P and F pots up 20 degrees clockwise in an effort to make it go better.
I expected to see at least a higher level of boost and a change to the spool up. Instead, boost levels are about the same, but when the engine starts work hard on WOT the motor stutters.
I have a new set of properly gapped NGKs, new HT leads, rotor and cap. Idle is steady and there is no evidence of any vacuum leaks.
The stuttering is not like when your plugs are worn, it is gentler than that and the pattern is different. I am thinking it likely to be a fueling problem. Would that be correct?
posted by 121.50.19...
Posts in this Thread:
- What is causing the stuttering, rotor, Sat, 11 Aug 2007 06:33:39 <-- Viewing This Message
- prepump, Brownie, Sun, 12 Aug 2007 10:05:15
- Re: What is causing the stuttering, vvack0matic
, Sat, 11 Aug 2007 08:11:12 - you've got nice car, quit guessing. install fuel, sloopjohnb, Sat, 11 Aug 2007 07:30:28
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