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Subject:
Re: L98: starts, but won`t keep running.
From: PJ <pj4380(at)yahoo.com>
Subject: Re: L98: starts, but won`t keep running.
Lines: 43
Date: Mon, 17 Oct 2005 20:29:51 -0700
NNTP-Posting-Host: 68.6.135.254
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Dave Gee wrote:
> Hi group:
>
> I have an 89 L98 conv. I am having a problem with it, first thing in
> the morning it will start, rev up to about 12-1500 rpm and then idle
> down and die. It will not restart after this unless let sit for 5 or
> 10 mins. then it will repeat the performance.
> No codes are shown, and it is getting spark, even when not starting.
> The fuel rails are pressurized (not sure how much pressure) It seems
> like the injectors are not putting out gas or perhaps the throttle
> position is unknown?
> Trying to get it to keep running with the throttle on the initial
> start just kills it, I suspect something to do with not getting enough
> fuel in the mixture.
> Anyone experience a similar problem or have any ideas on how to
> diagnose this further?
>
>
> TIA
> Dave G.
>
The shop manual (Section 6E) and a pressure gauge will save you time and
a bundle of dollars throwing parts at an unknown problem. Without codes
though even that won`t be easy.
Gentle throttle tends to rule out an idle air circuit failing to open.
Since you know spark is OK then its time to figure out what`s happening
first. Is the fuel pump shutting down or the injectors all shutting off
with plenty of pressure on the rail.
If the engine runs for 2 seconds and then dies of fuel starvation, it
could be failure of the ECM to receive a pulse train from the
distributor --that will shut down the injectors. I`ve seen that in a
350tpi Camaro. That could be a broken wire from the distributor to the
ECM or a bad distributor module.
You might also pull the vacuum line on the fuel pressure regulator and
see if there`s gasoline leaking from the wet side to the vacuum side.
Best to get out the book.
PJ
From: =?windows-1252?Q?Soot_Bull_Jeep=99?= <ding(at)dong.com>
Subject: LA Area Vette Shops/Engine Guy ?
Date: Wed, 31 Mar 2004 23:38:16 -0800
Lines: 11
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Looking for referrals for a RELIABLE shop/engine guy to
swap/rebuild my `92 LT-1.
Anyone?
TIA
SBJ
--
............`cuse me whyl I kiss tha sky...
From: ciacon(at)pingme.com (Wayne Johnson)
Subject: Re: LA Area Vette Shops/Engine Guy ?
Summary: Post a message requesting my email address, if you need it...
Lines: 16
NNTP-Posting-Host: 24.130.82.203
Date: Sun, 04 Apr 2004 20:25:51 GMT
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On Wed, 31 Mar 2004 23:38:16 -0800,
=?windows-1252?Q?Soot_Bull_Jeep=99?= <ding(at)dong.com> wrote:
>Looking for referrals for a RELIABLE shop/engine guy to
>swap/rebuild my `92 LT-1.
They`re pricey, but do great work...JD Corvette in Bellflower. Ask
for Noe (pronounced NO-EE). He`ll tell you to rebuild it, not swap
it.
-Wayne
************************************************
"Don`t let it end like this. Tell them I said something."
- last words of Pancho Villa (1877-1923)
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