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just curious, wait 8 seconds to start?

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114056
Printed Date: May 16, 2025 at 12:07 PM


Topic: just curious, wait 8 seconds to start?

Posted By: t&t tech
Subject: just curious, wait 8 seconds to start?
Date Posted: May 27, 2009 at 4:25 PM

here's how it went, one of our best customers comes in, we installed remote starters in all his personal vehicles, says he wants the remote start portion removed or de-activated an all the cars!

Reason- he says he has been having problems with one of the vans we did a starter in, a toyota rav4, starter was installed about two and a half years before, so he goes by the mechanic, and the guy points out to him, that the remote start could be the nature of his problems, this is the mechanic's reason- he says, the remote start fires up the engine to quickly from ignition to cranking the starter, he states, that at least eight seconds must elapse after the ignition is turned on and then the starter must crank, not having this delay between ignition and starting he says could cause the pcm to fail.

now i've never heard this theory before, and personally it doesn't make much sense to me, because the average human being doesn't wait eight seconds after turning ignition to start, me personally when i start a vehicle with the keys, i wait a couple seconds for the lights to go out that come on momentarily when the ignition is turned on, then i crank, but that's just out of habit nothing about electronics at all.

so my question is, is there any truth to this theory?

any explanations would be welcome, and this is my 500th post,:^:



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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5



Replies:

Posted By: i am an idiot
Date Posted: May 27, 2009 at 4:58 PM
If it is a Petrol power plant, I have never heard of such. 




Posted By: ckeeler
Date Posted: May 27, 2009 at 4:58 PM
most mechanics are absolute quacks and bumbleing fools when it comes to anything electrical t&t. rather than take them all out cant you just offer to install a 528t on all the units and time them at exactly 8 seconds? even if you have to almost give away the part and eat the labor? at least you can possibly satisfy the customer, and maybe the grease monkey as well.




Posted By: i am an idiot
Date Posted: May 27, 2009 at 5:10 PM
Some Remote Start units are programmable for Diesel engines, that will give you a delay without having to buy anything, if those units are capable of that feature.




Posted By: t&t tech
Date Posted: May 27, 2009 at 6:32 PM
yes my units are capable of the delay without additional parts, but the customer has insisted he wants it removed so we had no choice but to oblige, thanks for the quick replies guys.

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5




Posted By: lspker
Date Posted: May 27, 2009 at 9:14 PM
If the delay was require it would be programmed in to the pcm or even the ignition switch itself.  Other than a desiel there would be no need.  I'd love to hear the mechanics resoning for 8 sec.




Posted By: i am an idiot
Date Posted: May 27, 2009 at 9:20 PM
He must ride bulls on the side.




Posted By: tommy...
Date Posted: May 27, 2009 at 9:21 PM
What a load of crap as stated, why doesnt the car do this...? I had a mechanic tell me that remote starters are bad for cars because all the accessory wires are powered up and over-heat...I asked what do people do when they are driving 8 hours to virginia beach...? So how much did you charge in labor to do this...Dont tell me free of charge...?

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: KPierson
Date Posted: May 27, 2009 at 10:21 PM

The only time based thing to consider is the amount of time the fuel line takes to pressurize.  This is typically less then 2 seconds and a modern ECU may actually take longer to sync with the motor then the fuel pump takes to prime.

Something you may want to ask your customer -

1. How long have you been driving?

2. How many times have you started your car?

3. How many times have you waited 8 seconds before starting the car?

4. How many issues have you had related to that 8 second delay?

As stated above, if this was a real concern the car would have an interlock that would prevent it from starting.  If remote start units were damaging cars because they weren't waiting long enough the manufaturers would make the delay longer.  Currently, I believe the DEI delay is around 5 seconds or so from when the ignition is turned on to when the car actually cranks.



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Kevin Pierson




Posted By: ckeeler
Date Posted: May 28, 2009 at 8:48 AM

i am an idiot wrote:

He must ride bulls on the side.

good one. posted_image





Posted By: ckeeler
Date Posted: May 28, 2009 at 8:51 AM

tommy... wrote:

I had a mechanic tell me that remote starters are bad for cars because all the accessory wires are powered up and over-heat...I asked what do people do when they are driving 8 hours to virginia beach...?

i love how mechanics have such a keen grasp for the obvious, they're so smart sometimes it scares me. posted_image





Posted By: tommy...
Date Posted: May 28, 2009 at 9:37 AM

i am an idiot wrote:

He must ride bulls on the side.

Just saw this too...Thanks for the morning laugh...(got coffee all over my shirt)



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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!





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