Download How to Tune and Modify Automotive Engine Management Systems by Jeff Hartman PDF

By Jeff Hartman

Knowing gas injection and engine administration structures is the foremost to extracting greater functionality from today’s autos in a secure, trustworthy, and driveable style. Turbochargers, superchargers, nitrous oxide, excessive compression ratios, radical camshafts: all are recognized to make horsepower, yet with out right realizing and keep watch over of gasoline injection and different digital engine administration structures, those well known power-adders won't ever stay as much as their capability and, at worst, could cause dear engine harm. Drawing on a wealth of data and event and a heritage of greater than 1,000 journal articles at the topic, engine-control specialist Jeff Hartman explains every little thing from the fundamentals of gas injection to the construction of advanced venture automobiles. Hartman covers the most recent advancements in fuel-injection and engine administration expertise utilized by way of either international and family brands, together with well known aftermarket platforms. No different booklet available in the market covers the topic of engine administration platforms from as many angles and as comprehensively as this booklet. via his non-stop journal writing, writer Jeff Hartman is often up to date with the latest fuel-injection and engine administration items and platforms.

Show description

Read Online or Download How to Tune and Modify Automotive Engine Management Systems - All New Edition: Upgrade Your Engine to Increase Horsepowe PDF

Similar repair & maintenance books

English Auxiliaries: Structure and History

Auxiliaries are essentially the most advanced parts of English syntax. confrontation over either the foundations and info in their grammar has been enormous. Anthony Warner right here bargains a close account of either their synchronic and diachronic homes. He first argues that lexical houses are principal to their grammar, that is fairly non-abstract.

David Vizard's How to Port & Flow Test Cylinder Heads

Writer Vizard covers mixing the bowls, easy porting methods, in addition to pocket porting, porting the consumption runners, and plenty of complicated systems. complex methods comprise unshrouding valves and constructing the correct port sector and perspective.

Extra resources for How to Tune and Modify Automotive Engine Management Systems - All New Edition: Upgrade Your Engine to Increase Horsepowe

Example text

Crankshaft trigger wheels sometimes have one trigger point per cylinder, with each point indicating TDC for one cylinder, or more commonly a total of somewhere between 24 and 60 points, with a missing tooth (or sometimes two) indicating a particular crankshaft position follows. indd 38 (Text) (Ray) 4/4/13 9:06 AM 4/4/13 8:50 AM (Fogra 39)Job:03-30412 Title:MBI-How To Tune And Modify Engine Management Systems #175 Dtp:225 Page:38 revolution or cycle such that unexpected misfires or rapid changes in engine speed that might cause the ECU to miss a tooth on the trigger wheel cannot cause it to lose track of engine position for more than a fraction of one revolution.

PROM changes have always required you to know what engine you have. This sometimes requires checking the vehicle identification number (VIN), which contains a code that indicates the type of original engine installed at the factory. If engine changes have been made (or if you think the PROM calibration is nonstandard), check with the manufacturer, and have all internal and external engine documentation available. Most PROM vendors that are still in business (and most probably are) should maintain documentation and serial numbers for all PROMs they’ve sold.

Aftermarket engine management systems are typically designed to be extremely data dependent, with embedded software routines using certain data for EFI calibration computations and other data as parameters or switches that customize which logic will be used to manage a particular engine. Based on the value of a certain byte or bit of data, code might (or might not) be executed to handle, for example, computation of additional fuel enrichment when nitrous injection is armed. Modern aftermarket EMS ECMs will behave in many different ways depending on the data in their PROM/EEPROM.

Download PDF sample

Rated 4.56 of 5 – based on 12 votes