Could you assist me with your expertise? I'm running an MSII on a V3.0 board to control fuel on a mildly warmed over 454 in a 1988 C1500.
Current tune is attached. Idles great - stumbles while accelerating - runs okay in cruise...take a look at the log (next post) and you'll see what i mean.
Engine specs are below:
-1988 454
-Peanut port heads
-Edelbrock TBI manifold
-454 TBI
-Erson cam - 270/280 (204/214 @.050; .476/.501 lift; 112 LSA) going for low end torque, it''ll be my daily driver
-MSII controlled HEI, initial timing 16 degrees
-1.75" long tube headers
-2.5" true dual exhaust with H tube
I need another set of eyes on this...
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Buick462.efi
- MegaSquirt Newbie
- Posts: 23
- Joined: Sat Jul 13, 2013 7:46 pm
I need another set of eyes on this...
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Last edited by Buick462.efi on Sat Nov 16, 2013 3:01 pm, edited 1 time in total.
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Buick462.efi
- MegaSquirt Newbie
- Posts: 23
- Joined: Sat Jul 13, 2013 7:46 pm
Re: I need another set of eyes on this...
Datalog from earlier today.
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: I need another set of eyes on this...
It looks like a jittery MAP signal triggering too much acceleration enrichment; try setting the tune to 100% TPS driven AE, and check to be sure the MAP signal is plumbed to a good spot.
