IAC and starting
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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).
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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Robert Spencer
- MegaSquirt Newbie
- Posts: 27
- Joined: Fri Oct 19, 2007 6:42 pm
- Location: Washington ST.
IAC and starting
My IAC is on a Chrysler TB and almost works corectly. The engine starts cold fine and warms up with the faster idle. The issue is I have to turn the engine off and restart for the Idle to come down where it should be. As long as the engine is warm, it idles fine. Cold engine, idle stays high. During this process I found that the engine will not restart while going down the road in gear. I have to shove in the clutch and use the starter, then it starts instantly. I have never had a FI engine with a manual trans before and find this strange. If the IAC would work right I probably never would have found the starting issue. Anybody have an answer for the IAC and idle? The restarting is just strange. Thanks
Ghias Rule
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Robert Spencer
- MegaSquirt Newbie
- Posts: 27
- Joined: Fri Oct 19, 2007 6:42 pm
- Location: Washington ST.
Re: IAC and starting
Sorry, I forgot the info,
2276 ACVW, MS11, 2,886, V3, relay board, EDIS, Runs great except gor the IAC, ?
2276 ACVW, MS11, 2,886, V3, relay board, EDIS, Runs great except gor the IAC, ?
Ghias Rule
Re: IAC and starting
Most vehicles with standard transmissions require the clutch be depressed to start. Prevents starting in gear...also make push/overrun starts impossible.Robert Spencer wrote: I found that the engine will not restart while going down the road in gear. I have to shove in the clutch and use the starter, then it starts instantly.
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DonTZ125
- Experienced Squirter
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Re: IAC and starting
The clutch & neutral safety switches are there to prevent you from turning the starter over while in gear with the clutch out - lurch bump crunch... I HAVE bump-started newer standard-trans vehicles; if the starter relay is what's being locked-out, it won't affect the rest of the engine.
I can't see the safety switches blocking the ignition or fuel pump, since that won't affect the lurch of the vehicle.
I can't see the safety switches blocking the ignition or fuel pump, since that won't affect the lurch of the vehicle.
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Robert Spencer
- MegaSquirt Newbie
- Posts: 27
- Joined: Fri Oct 19, 2007 6:42 pm
- Location: Washington ST.
Re: IAC and starting
Thanks for the replys. This is on a 1971 VW Karmann Ghia, so safety latches and such were never part of the car. I guess the designers felt that anyone driving a stick new how to operate it correctly? I spent many years push and coasting starting all kinds of vehicles. I just wonderd if the MS and EDIS was the reason it won't start with out using the starter? It wouldn't matter if the IAC would slow down the idle without restarting!
Ghias Rule