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Old 11-18-2008, 01:37 PM  
Senior Member
Join Date: Dec 2007
Location: Gulfport, Florida
Posts: 3,208
iTrader: (1)
Default Air Pump Simulator DIY for $12.45

I have completed my final version of my air pump simulator and it passed the testing this morning with no error codes. All parts from Radio Shack and total cost $12.45. No more $150-$200 to buy these online. I will post the complete DIY this evening when I get home from work. Here's a picture of...
xxxJohnBoyxxx is offline   Reply With Quote
By Mkl on 01-29-2013, 07:12 AM

I had no time to reply until now .. the fact is .. the device is working 100%
Congratulation for the ingenuity.
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By runnr548 on 04-12-2013, 03:31 AM

I am thinking we need to build one for our 6cyl swap!
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By lilmikey13 on 12-19-2013, 01:16 AM

okay, first of all im sorry for posting this and maybe sounding dumb. But i've just built my sap simulator and tested it the way it says. I'm ready to install. I removed my sap, and was ready to hook it all up. but as far as connecting the o2 dme wires. I'm completely lost. Where are these wires at? I have a 97 m44 1.9 liter engine. Can someone provide a picture or good description to where the i have to tap in to the o2/dme wires. Like i said im completely lost. and sorry once again for sounding like such a noob.
Thank You in advance
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By lilmikey13 on 12-27-2013, 07:46 PM

Hello.. anybody??

Sent from my SPH-L710 using Tapatalk
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By xxxJohnBoyxxx on 01-02-2014, 12:51 AM

Ok hi I'm John and I thought this SAP simulator up and posted it. We need to talk on the phone. It is way too much to type. Super easy to explain on the phone. You just need a understanding of why it hooks into the upstream O2 and I can tell you where to hook it and color of the wires. After you understand how it fools the DME into thinking the SAP is there and working it's super simple to install. Not going to type it so call me. I don't mind helping anyone on this forum

Call if you want to get this done 100%...John Smith 727 557-5897 EST
Last edited by xxxJohnBoyxxx; 01-02-2014 at 12:53 AM..
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By performanceisland on 03-27-2015, 11:54 PM

parts 275-248 and 270-1802 are no longer available from radioshack, any suitable replacements?
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By xxxJohnBoyxxx on 03-28-2015, 12:19 AM

Originally Posted by performanceisland View Post
parts 275-248 and 270-1802 are no longer available from radioshack, any suitable replacements?
270-1802 shows as still available. It is a project enclouser or a black box that the breadboard (soldering board) can fit in. You could use cardboard if mounted inside. Its only purpose is to ensure the board doesn't ground out on anything or get wet if mounted in the engine bay. I always mount my sims in the cabin where it is always dry.

275-248 is discontinued. You can try 275-0031. Best thing to do is go look in the relay box at your local ratshack. This item is a STDP relay or (single throw, double pole). That means it has a single positive/neg to energize the relay or ST and when the relay is active it has 2 poles or DP that are connected.

If it is too confusing I will go to RS and get part numbers, let me know

Hope this helps, John S
Last edited by xxxJohnBoyxxx; 03-28-2015 at 12:21 AM..
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By lem0n on 11-03-2017, 12:10 AM

John, sorry to resurrect this old thread, but would you consider making one for sale? I’ll gladly pay for your time and effort to get a functioning simulator instead of mucking it up myself.
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By runnr548 on 07-10-2018, 03:47 AM

I like the sound of that!
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By spidertri on 07-18-2018, 06:15 PM

If you search the internet you'll find that since this thread has been started there's a guy who makes and sells them on his website.
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